| AUTHOR | YEAR | TITLE | COUNTRY |
| Alcock | 1989 | Animal Behavior: an evolutionary approach-4th edition | Colombia |
| Hickman et al. | 2000 | Animal Diversity | Ecuador |
| Tobin & Dusheck | 2001 | Asking about Life-2nd Edition | NA |
| Murton & Westwood | 1977 | Avian Breeding Cycles | Colombia |
| Krebs & Davies | 1978 | Behavioural Ecology: an evolutionary approach | Bolivia |
| Elliott and Elliott | 1997 | Biochemisty and Molecular Biology | Cuba |
| Reaku-Kudla & Wilson | NA | Biodiversity II | Ecuador |
| Freeman | 2002 | Biological Science - | Indonesia |
| Freeman | 2002 | Biological Science - | NA |
| Freeman | 2002 | Biological Science - Instructor's Resource Guide | Indonesia |
| Freeman | 2002 | Biological Science - Study Guide | Indonesia |
| Freeman | 2002 | Biological Science - Test question booklet | Indonesia |
| Freeman | 2002 | Biological Science- Instructor's Edition w/ CD-ROM | Indonesia |
| Freeman | 2005 | Biological Science- Instructor's Edition- 2nd edition w/cd | NA |
| Freeman | 2005 | Biological Science- Instructor's Edition- 2nd edition w/cd | Mongolia |
| Causton | 1987 | Biologists Advanced Mathematics, A | Mongolia |
| Forsythe & Kent | 1990 | Biology 106 | Ecuador |
| Campbell et al. | 1999 | Biology 5th Edition | Ecuador |
| Cambell | 1999 | Biology 5th Edition w/CD-ROM | USA |
| Raven et al. | NA | Biology of Plants- 6th edition | Colombia |
| Curtis | 1979 | Biology- 3rd edition | NA |
| Guttman | 1999 | Biology-1st Edition | Ecuador |
| Guttman | 1999 | Biology-1st Edition | Indonesia |
| Campbell | 1987 | Biology-1st edition- | Indonesia |
| Campbell | 1987 | Biology-1st edition- | Indonesia |
| Raven & Johnson | 1995 | Biology-3rd edition | Ecuador |
| Curtis | 1979 | Biology-3rd edition | Indonesia |
| Curtis | 1979 | Biology-3rd edition- Instructor's Manual | Indonesia |
| Campbell | 1996 | Biology-4th edition | Indonesia |
| Solomon et al. | 1996 | Biology-4th edition | Indonesia |
| Campbell et al. | 1999 | Biology-5rd edition | Ecuador |
| Campbell et al. | 1999 | Biology-5rd edition | Indonesia |
| Campbell et al. | 1999 | Biology-5rd edition | Argentina |
| Campbell et al. | 1999 | Biology-5rd edition | Nicaragua |
| Campbell et al. | 1999 | Biology-5th Edition - Instructor Presentation CD | Ecuador |
| Campbell et al. | 1999 | Biology-5th Edition-Instructor's guide | Indonesia |
| Campbell & Reece | 2002 | Biology-6th edition | Indonesia |
| Campbell & Reece | 2002 | Biology-6th edition | NA |
| Campbell & Reece | 2002 | Biology-6th edition | Colombia |
| Campbell & Reece | 2002 | Biology-6th edition | China |
| Campbell & Reece | 2002 | Biology-6th edition | Ecuador |
| Campbell & Reece | 2002 | Biology-6th edition - CD-ROM (images) | NA |
| Campbell & Reece | 2002 | Biology-6th edition - Image library-CD-ROM | Ecuador |
| Campbell & Reece | 2002 | Biology-6th edition - Instructor's guide | Ecuador |
| Campbell & Reece | 2002 | Biology-6th edition - Instructor's guide | Indonesia |
| Campbell | 2005 | Biology-7th edition w/CD-ROM | Mongolia |
| Campbell & Reece | 2005 | Biology-7th edition w/CD-ROM | Indonesia |
| Campbell | NA | Biology: 5th Edition | Nicaragua |
| Starr & Taggart | 1998 | Biology: The unity and diversity of life-8th edition w/ CD-ROM | NA |
| Kaufman & Franz | 1993 | Biosphere 2000: protecting our global environment | China |
| Kaufman & Franz | 1993 | Biosphere 2000: protecting our global environment | Colombia |
| Dawkins | 1987 | Blind Watchmaker, The | Mongolia |
| Himonas & Howard | 2003 | Calculus-Ideas and Applications | NA |
| Alberts et al. | 1994 | Cell, The- 3rd edition | Colombia |
| Klug & Cummings | 1997 | Concepts of Genetics-5th Edition | Mongolia |
| Houseman | 2003 | Digital Zoology-2.0 w/ CD-ROM | Ecuador |
| Press & Siever | 1974 | Earth | Ecuador |
| Dodson et. al | 1998 | Ecology | Indonesia |
| Hickman & Hickman | 2002 | Ecology Action Guide, The | Ecuador |
| Hickman & Hickman | 2002 | Ecology Action Guide, The | Indonesia |
| Numata | 1990 | Ecology and Conservation | Ecuador |
| Bush | 1997 | Ecology of a Changing Planet | USA |
| Bush | 2000 | Ecology of a Changing Planet- 2nd edition | Mongolia |
| Bush | 2003 | Ecology of a Changing Planet- 3rd edition | Ecuador |
| Erlich et al. | 1977 | Ecoscience: Population Resources Environment | Ecuador |
| NA | NA | Elements of Ecology | Nicaragua |
| Smith and Smith | 2000 | Elements of Ecology 4th Edition w/CD-ROM | Cuba |
| Smith & Smith | 1998 | Elements of Ecology- 4th edition | Mongolia |
| Smith & Smith | 1998 | Elements of Ecology- 4th edition | Ecuador |
| Smith & Smith | 1998 | Elements of Ecology- Instructor's Manual and Test Bank | China |
| Smith & Smith | 2004 | Elements of Ecology-6th Edition | Ecuador |
| Turk et al. | 1974 | Environmental Science- Instructor's edition | Indonesia |
| Chiras | 1991 | Environmental Science: Action for a sustainable future- 3rd edition | Ecuador |
| Botkin & Keller | 1995 | Environmental Science: Earth as a living planet | Indonesia |
| Russell | 1987 | Essential Genetics | NA |
| Malacinski and Freifelder | 1998 | Essentials of Molecular Biology | Cuba |
| Anonymous | 1987 | Evolucion Biologica Vol. 1 No. 1 | Peru |
| Anonymous | 1989 | Evolucion Biologica Vol. 3 No. 3 | Peru |
| Anonymous | 1993 | Evolucion Biologica Vol. 7 No. 1 | Peru |
| Strickberger | 1996 | Evolution-2nd edition | USA |
| Strickberger | 1996 | Evolution-2nd edition | Mongolia |
| Strickberger | 1996 | Evolution-2nd edition | Indonesia |
| Strickberger | 1996 | Evolution-3rd edition | NA |
| Freeman & Heron | 2001 | Evolutionary Analysis 2nd Edition | Cuba |
| Freeman & Heron | 2001 | Evolutionary Analysis-2nd edition | Mongolia |
| Freeman & Heron | 2001 | Evolutionary Analysis-2nd edition | NA |
| Sherman & Alcock | 1998 | Exploring Animal Behavior, Reading from American Scientist 2nd Edition | Cuba |
| Mlodinow | 2003 | Feynman's Rainbow | USA |
| Miyazaki | 2003 | Foundations of biology-Molecules to Organisms | Indonesia |
| Miyazaki | 2001 | Foundations of biology-Organisms to Ecosystems | Indonesia |
| Miyazaki | 1995 | Foundations of biology-Organisms to Ecosystems-3rd edition | Indonesia |
| Krohne | 1997 | General Ecology | Indonesia |
| Lytle & Wodsedalek | 1987 | General Zoology-10th edition | Indonesia |
| Lytle & Wodsedalek | 1984 | General Zoology-9th edition | Indonesia |
| Lewin | 1994 | Genes V | Ecuador |
| Anonymous | NA | Genetics and Conservation | Ecuador |
| Klug & Cummings | 2003 | Genetics: A Molecular Perspective w/CD-ROM | USA |
| Fleischer Mutel & Emerick | 1992 | Grassland to Glacier | Mongolia |
| Cody | 1985 | Habitat Selection in Birds | Colombia |
| Anonymous | 1968 | IV Congreso Latinoamericano de Zoologia-Vol 1 | Colombia |
| Anonymous | 1968 | IV Congreso Latinoamericano de Zoologia-Vol 2 | NA |
| Campbell | 2005 | Instructors Guide-biology 7th Edition | Mongolia |
| Hickman et al. | 2001 | Integrated Principles of Zoology- 11th edition- Instructor's Manual | Ecuador |
| Hickman et al. | 2001 | Integrated Principles of Zoology- 11th edition-Laboratory Studies | Indonesia |
| Hickman et al. | 1974 | Integrated Principles of Zoology- 5th edition | Indonesia |
| Yodzis | 1989 | Introduction to Theoretical Ecology | Mongolia |
| Barnes | 1968 | Invertebrate Zoology-2nd Edition | Ecuador |
| Russell-Hunter | 1979 | Life of invertebrates, A | Ecuador |
| Purves et al. | 1995 | Life-The Science of Biology- 3rd edition | NA |
| Purves et al. | 1998 | Life-The Science of Biology- 5th edition w/CD-ROM | Ecuador |
| Miller | NA | Living in the Environment, Environmental Sciences, and Sustaining the Earth | Nicaragua |
| McAtte | 1923 | Local Names of Migratory Game Birds: United States | Colombia |
| Levinton | 1995 | Marine Biology: Function, Biodiversity, Ecology | Argentina |
| Campbell | 2005 | Media Manager for Biology 7th edition | Mongolia |
| Martin & Bateson | 1996 | Medicion del Comportamiento | NA |
| Krebs | 1988 | Message of ecology, The | Mongolia |
| Atlas & Bartha | 1992 | Microbial Ecology- Fundamentals and Applications- 3rd edition | Ecuador |
| Pelczar & Reid | 1958 | Microbiology | Ecuador |
| Lincoln | 1950 | Migration of Birds | Colombia |
| Alberts et al. | 1994 | Molecular Biology of the Cell-3rd edition | Colombia |
| Barry | 1964 | Molecular Biology:Genes and Chemical Control of Living Cells | Ecuador |
| Morrison & Boyd | 1983 | Organic Chemistry-4th edition | Indonesia |
| Morrison & Boyd | 1992 | Organic Chemistry-6th edition | Indonesia |
| Carey | 2003 | Organic chemistry-5th edition | Cuba |
| Pokarzhevskaya | 1998 | Pattern and Process in Alpine Communities of the Northwestern Caucasus | China |
| Van De Graaf & Crawley | 1996 | Photographic Atlas for the Biology Laboratory, A | Ecuador |
| Leary | 1988 | Photography from Theory to Practice-2nd edition | Mongolia |
| Graham et al. | 2003 | Plant Biology | Colombia |
| Hartmann | 1997 | Plant Propagation Principles and Practices 6th Edition | Ecuador |
| Hedrick | 1984 | Population Biology | China |
| Steinberger, Ed. | 1996 | Preservation of our World in the Wake of Change: Vol 6a | Colombia |
| Battley | 1986 | Priniciples of Biology | NA |
| Thrall et al. | 1967 | Some Mathematical Models in Biology | Mongolia |
| Bishop | 1966 | Statistics for Biology | Ecuador |
| Schork & Remington | 2000 | Statistics with Applications to the Biological Sciences and Health Sciences | Mongolia |
| Anderson et al. | 1986 | Statistics: Concepts and Applications | NA |
| Campbell | 2005 | Student Study Guide- Biology 7th Edition | Mongolia |
| Walbridge & Brown | 1992 | Studies in Ecology-3rd edition | Indonesia |
| Campbell | 2005 | Test Generator- Biology 7th Edition | Mongolia |
| Pough | 1989 | Vertebrate Life-3rd | Ecuador |
| Pough | 1999 | Vertebrate Life-5th | Indonesia |
| Pough | 2002 | Vertebrate Life-6th | Indonesia |
| Pough | 2002 | Vertebrate Life-6th | Ecuador |
| Masson & McCarthy | 1996 | When Elephants weep: The emotional lives of animals | USA |
| Bolen & Robinson | 1999 | Wildlife Ecology and Management- 4th Edition | Argentina |
| Bolen & Robinson | 2003 | Wildlife Ecology and Management- 5th Edition | Cuba |
| Rabinowitz | 1997 | Wildlife Field Research and Conservation Manual | NA |
| Miller & Harley | 1999 | Zoology-4th ed | Indonesia |