Burton, Jenni, author
McGraw-Hill, 2012
Buku Teks
Johnson, Louise C., 1923-, author
Allyn and Bacon, 1986
Buku Teks
Zastrow, Charles, author
Dorsey Press, 1985
Buku Teks
edited by Bob Pease and Jan Fook
Routledge, 1999
Buku Teks
Jansson, Bruce S., author
Cengage Learning, 2018
Buku Teks