Keat, Paul G, author
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Buku Teks
Keat, Paul G
Prentice Hall International, 2000
Buku Teks
Farrar, Donald E., author
Prentice-Hall, 1970
Buku Teks
Chopra, O.P., author
Tata McGraw-Hill, 1984
Buku Teks
Ulbrich, Holley H., author
Barrons, 1990
Buku Teks