Loughary, John W.
Helping others help themselves a guide to connseling skills
McGraw-Hill, 1979
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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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Egan, Gerard
The skilled helper : a problem-management and opportunity-development approach to helping
Brooks, 2014
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Schroeder, David A.
The psychology of helping and altruism: problems and puzzles
McGraw-Hill, 1995
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