Haney, Hutch
Basic counseling responses in groups : A multimedia learning system for the helping professions
Brooks/Cole, 2001
 Buku Teks
Haney, James Hutchinson
Basic counseling responses in groups : a multimedia learning system for the helping professions
Brooks/Cole Thomson Learning, 2001
 Multimedia
Baldwin, Robert E.
Trade policy in a changing world economy
Harvester/Wheatsheaf, 1988
 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
Homan, Mark S.
Promoting community change : making it happen in the real world
Cengage Learning, 2016
 Buku Teks