Sargent, Howard, author
John Wiley & Sons, 1978
Buku Teks
Virmani, B.R., author
Vision Books, 1998
Buku Teks
Sashkin, Marshall, 1944-, author
American Managemant Association, 1982
Buku Teks
Hill, Charles W. L., author
Houghton Miffinn, 1989
Buku Teks
Luthans, Fred, author
McGraw-Hill , 1976
Buku Teks