Stevens, Edward
McGraw-Hill, 1987
Buku Teks
Hurn, Christopher J.
Allyn and Bacon, 1993
Buku Teks
Levine, Daniel U.
Allyn and Bacon, 1992
Buku Teks
Routledge, 1997
Buku Teks
Richard Arum, Irenee R. Beattie, Merced, Karly Ford, editors
SAGE Publications, 2015
Buku Teks