Holden, Paul E., author
McGraw-Hill, 1951
Buku Teks
Luck, David J.
Prentice-Hall, 1979
Buku Teks
Pascale, Richard T.
Simon & Schuster, 1981
Buku Teks
Clinard, Marshall B. (Marshall Barron), author
Sage Publications, 1985
Buku Teks
Law, Dennis L.
Van Nostrand Reinhold Company, 1984
Buku Teks