edited by Richard Hugman, David Smith
Routledge, 1996
Buku Teks
edited by Lawrence S. Wringtsman
Wadsworth, 1968
Buku Teks
Weinberg, Meyer, author
Prentice-Hall, 1959
Buku Teks
edited by Donnie J. Self
Teagle & Little, 1977
Buku Teks
Leftwich, Richard H., author
Business Publications, 1974
Buku Teks