edited by Katherine A. Kendall
Council on Social Work Education, 1971
Buku Teks
Gore, M.S.
Asia Publishing House, 1965
Buku Teks
Collins, Donald
Brooks/Cole Cengage Learning, 2013
Buku Teks
McGraw-Hill, 1974
Buku Teks
New York Harper and Brothers 1959
Buku Teks