F.R.A. Hopgood ... [and others]
Academic Press, 1986
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Ryan, Daniel L.
Brooks/Cole Engineering Division, 1983
Buku Teks SO
Lueptow, Richard M.
Prentice-Hall, 2001
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by Arvid R. Eide ... [and others]
McGraw-Hill, 1985
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by Edwin T. Boyer ... [and others]
John Wiley & Sons, 1991
Buku Teks SO