Anderson, Richard
Sample pretreatment and separation : analytical chemistry by open learning
ACOL, 1991
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Simpson, Peter
Basic concepts in organic chemistry : a programmed learning approach
Chapman and Hall, 1994
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Michels, Leo
A basic math approach to concepts of chemistry
Brooks/Cole, 1996
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Michels, Leo
A basic math approach concepts of chemistry
Brooks/Cole, 1993
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Dickinson, Leslie
Self-instruction in language learning
Cambridge University Press , 1987
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