the social psychology of protest = protes dalam kajian psikologi sosial

le Bert Klandemans, helly p. soetjipto
Foilsithe 2005

Prejudice : Its Social Psychology = Prejudice : Menangani

le Rupert Brown, Helly P. Soetjipto, Sri Mulyan
Foilsithe 2005

Social Conflict : Escalation, Talemate, and Settlement = Teori Konflik Sosial

le Dean G. Pruitt, Helly P. Soetjipto dan Sri Mul
Foilsithe 2011

Theory and Pracktise of Counselling and Therapy, Fourth Edition = Teori dan Praktik Konseling dan Terapi

le Richard Nelson-Jones, Helly P. Soetjipto dan Sri Mul
Foilsithe 2011