Thomas, Edwin J.
Designing intervention for helping professions
Sage, 1984
Buku Teks SO
Egan, Gerard
The skilled helper : a systematic approach to effective helping
Brooks/Cole, 1986
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Chang, Valeri
Developing helping skills: a step-by-step approach to competency
Cengage Learning, 2013
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Brammer, Lawrence M.
The helping relationship: process and skills
Prentice-Hall, 1988
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Priestley, Philip
Learning to help : basic skills exercises
Tavistock, 1983
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