White, Roderick (edit)
McGraww-Hill Book Co., 2000
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White, Roderick (edit)
McGraww-Hill , 2000
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Wells, William D.
Prentice-Hall, 2000
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Weilbacher, William M
Macmillan, 1979
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White, Roderick (edit)
McGraww-Hill Book Co., 2000
Buku Teks