Mostwin, Danuta, author
National Association of Social Workers, 1980
Buku Teks
Ackerman, Nathan W.
Basic Books, 1972
Buku Teks
Collins, Donald, author
Brooks/Cole Cengage Learning, 2013
Buku Teks
Freeman, Edith M.
Sage Publications, 1993
Buku Teks
Whittaker, James K., author
Aldine, 1975
Buku Teks