Odum, Eugene Pleasants
Basic ecology
Saunders College, 1983
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Marshall, P.T.
Basic biology
Macdonald and Evans, 1974
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Fryar, Maridell
Basic debate
National Textbook Co., 1979
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Hitner, Henry
Basic pharmacology
McGraw-Hill, 1999
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Gujarati, Damodar N.
Basic econometrics
McGraw-Hill, 2009
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