Merrill, Ray M., author
Jones & Bartlett Learning, 2016
Buku Teks
Szklo, M. (Moyses), author
Jones And Bartlett Publishers, 2007
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Nelson, Kenrad E., author
Jones and Bartlett Publisher, 2005
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Ahlbom, Anders
Epideology Resources, 1984
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Duncan, David F.
Macmillan, 1988
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