Neil Thompson and Paul Stepney, editors
Routledge, Taylor & Francis Group, 2018
Buku Teks
Smalley, Ruth Elizabeth, author
Columbia University Press, 1971
Buku Teks
Cynthia Franklin, Editor in Chief
NASW Press, 2016
Buku Referensi
edited by Jerrold R. Brandell
Free Press, 1997
Buku Teks
Edberg, Mark Cameron, 1955-, author
Jones & Bartlett Learning, 2015
Buku Teks