Schmuck, Richardo
Group processes in the classroom
WM. C. Brown company publisher , 1983
 Buku Teks
Miles, Matthew B.
Learning to work in groups : a practical guide for members and trainers / Matthew B. Miles
Teacher College Columbia Univ., 1981
 Buku Teks SO
T-Group theory and laboratory method: innovation in re-education
John Wiley, 1964
 Buku Teks SO
Group techniques / Gerald Corey ...[et al.].
Brooks/Cole Publishing , 1982
 Buku Teks SO
Napier, Rodney W.
Advanced games for trainers : powerful interventions for solving team, group, or organizational problems
McGraw-Hill , 1999
 Buku Teks