Hay, William W.
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Buku Teks
Khisty, C. Jotin
Prentice-Hall, 1990
Buku Teks
Morlok, Edward K.
McGraw-Hill, 1978
Buku Teks
Banks, James H.
WCB McGraw-Hill, 1998
Buku Teks
Khisty, C. Jotin
Prentice Hall International, 1998
Buku Teks