Litvak, Isaiah A.
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Buku Teks
Chatterjee, S.K.
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Buku Teks
Griffin, Ricky W.
Prentice-Hall, 2002
Buku Teks
Griffin, Ricky W.
Prentice-Hall, 2002
Buku Teks
Hill, Charles W.L.
McGraw-Hill, 2012.
Buku Teks