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Thomson South-Western, 2008
Multimedia
Shao, Stephen P., author
Charles E. Merrill, 1976
Buku Teks
Dielman, Terry E.
Brooks/Cole, 2004
Multimedia
Kazmier, Leonard J., author
McGraw-Hill, 1998
Buku Teks
Barrow, Mike, author
Prentice-Hall, 2001
Buku Teks