Bradford, Leland P.
Making meeting work : a guide for leaders and group members
University Associates, 1976
 Buku Teks
Afra Afifah, examiner
Peran Support Group dalam mendorong motivasi belajar remaja : action research pada pelajar SMA X, Manggarai, Jakarta Selatan = The role of Support Group encouraging learning motivation in youth : action research on students of SMA X, Manggarai, South Jakarta
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
 UI - Skripsi Membership
Konopka, Gisela
Social group work : a helping process
Prentice-Hall, 1963
 Buku Teks
Trecker, Harleigh B.
Social group work principles and practices
Association Press, 1967
 Buku Teks
Franciscus Irawan
Hubungan antara kualitas paduan suara dan group cohesiveness pada Paduan Suara Gereja Katolik
2002
 UI - Skripsi Membership