Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1973
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Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1977
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Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1987
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Buffa, Elwood S. (Elwood Spencer), author
Erlangga, 1984
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Buffa, Elwood S. (Elwood Spencer)
Binarupa Aksara, 1999
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