Finkler, Steven A.
Jones and Bartlett, 2013
Buku Teks
Harrison, Carlene
Delmar Cengage Learning, 2013
Buku Teks
Mearns, Ian
Pitman, 1988
Buku Teks
edited by Sharon Buchbinder, Nancy Shanks
Jones & Bartlett Learning, 2012
Buku Teks
Buchbinder, Sharon B.
Jones and Bartlett Learning, 2012
Buku Teks