Smith, William F.
McGraw-Hill, 2004
Buku Teks SO
Smith, William F.
McGraw-HIll Higher education, 2006
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Van Vlack, Lawrence H.
Addison-Wesley, 1980
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Van Vlack, Lawrence H.
Addison-Wesley, 1975
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Callister, William D., Jr., 1940-
Wiley, 2015
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