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New York: McGraw-Hill, 1990
Buku Teks
Clough, Richard Hudson
John Wiley & Sons, c1991
Buku Teks SO
Asiyanto
Pradnya Paramita, 2010
Buku Teks
Clough, Richard Hudson
John Wiley & Sons, 2000
Buku Teks
Levy, Sidney M.
McGraw-Hill , 2002
Buku Teks SO