Gross, Bertram M., author
Free Press of Glencoe, 1964
Buku Teks
Kearns, Kevin P.
Jossey-Bass Publishers, 1996
Buku Teks
Starling, Grower
Wadsworth and Cengage Learning, 2011
Buku Teks
Martin, Shan
Sage Publications, 1983
Buku Teks
Edited by Pat Woodrum
The Haworth Press, 1989
Buku Teks