Trecker, Harleigh B.
Social group work principles and practices
Association Press, 1967
Buku Teks
Thibaut, John W.
The social psychology of groups / John W. Thibaut, Harold H. Kelley
John Wiley & Sons, 1967
Buku Teks
Administration of group work
Buku Teks
Batten,T.R.
The non-directive approach in group and community work
Oxford University Press, 1978
Buku Teks
Concepts and methods of social work / editor, Walter A. Friedlander
Prentice Hall of India, 1977
Buku Teks