by J. William Petty ... [and others]
Prentice-Hall, 1993
Buku Teks
by David F. Scott ... [and others]
Prentice Hall International, 1999
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Prentice Hall International, 1991
Buku Teks
by Arthur J. Keown ... [and others]
WM.C. Brown Comp., 1986
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Prentice Hall International, 1991
Buku Teks