Lathrop, Thomas G., author
Wadsworth, 1967
Buku Teks
Miller, G. Tyler (George Tyler), 1931-, author
Wadsworth, 1991
Buku Teks
Kuratko, Donald F., author
Harcourt College Publishers, 2001
Buku Teks
Duncan, Meredith J, author
Thomson Reuters, 2010
Buku Teks
Wardlaw, Gordon M., 1912-1989, author
McGraw-Hill, 2012
Buku Teks