Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1975
Buku Teks
Buffa, Elwood S. (Elwood Spencer), author
John Wiley & Sons, 1971
Buku Teks
Harding, H. A., author
Balai Aksara, 1984
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Rage, Louis J., author
Scranton, Penn., International Textbook
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Springer Cham, 2019
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