Fried, George H.
Schaum's outlines : biologi = Schaum's outline of theory and problems of biology
Erlangga, 2006
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Fogiel, M.
The biology problem solver
Research and education Association 61 ethel Road West, 1999
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Keck, Robert W.
Biomath : problem solving for biology students
Addison-Wesley, 2000
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Mader, Sylvia S.
Biology
McGraw-Hill , 1998
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Case, James F.
Biology
Macmillan, 1979
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