[edited by] William E. Thompson, Jack E. Bynum
Allyn and Bacon, 1991
Buku Teks
Luthans, Fred, author
McGraw-Hill, 1981
Buku Teks
Gennifer Furst, editor
SAGE , 2009
Buku Teks
Edited by Michael Huemer
Routledge, 2002
Buku Teks
Little, Brown & Co., 1986
Buku Teks