Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1987
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Bozarth, Cecil C., author
Pearson Education , 2016
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Bozarth, Cecil C., author
Pearson Prentice Hall, 2005
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Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1973
Buku Teks
Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1977
Buku Teks