Lubeck, Steven G.
Aldine Publishing Company, 1971
Buku Teks
Lukes, Steven
Columbia University Press, 1977
Buku Teks SO
Australia : Thomson, 2001,
Buku Teks
editors, Jack Rothman [and others]
Peacock publishers, 1995
Buku Teks
edited by John E. Tropman, John L. Erlich, Jack Rothman
F.E.Peacock, 1995
Buku Teks