Miller, G. Tyler (George Tyler), 1931-
Wadsworth, 1991
Buku Teks
Kuratko, Donald F.
Harcourt College Publishers, 2001
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Duncan, Meredith J
Thomson Reuters, 2010
Buku Teks
Wardlaw, Gordon M., 1912-1989
McGraw-Hill, 2012
Buku Teks
Gordon, Sheldon P.
McGraw-Hill, 1994
Buku Teks