edited by Jack H. Mendelson and Nancy K. Mello
McGraw-Hill, 1979
Buku Teks
4080, 2000
Buku Teks
Mostwin, Danuta, author
National Association of Social Workers, 1980
Buku Teks
Montgomery, James M., author
John Wiley & Sons, 1985
Buku Teks
Mc Graw Hill, 1996
Buku Teks