editor, Joseph L. Pagliari
Irwin, 1996
Buku Referensi
Randel, Jim, author
Facts on File Publications, 1986
Buku Teks
Kau, James B., author
McGraw-Hill, 1985
Buku Teks
Shilling, James D., author
South-Western, 2002
Buku Teks
Goddard, G. Jason, author
[Springer, ], 2012
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