George T. Austin
McGraw-Hill, 1986
Buku Teks SO
Dilion, C.P.
McGraw-Hill, 1992
Buku Teks SO
editor-in-chief, Douglas M. Considine
McGraw-Hill, 1974
Buku Referensi
Johnstone, Sydney J. (Sydney James)
John Wiley & Sons, 1961
Buku Teks SO
Johnson, Eric
Springer, 2012
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