- Indonesian Society of Psychology (HIMPSI), Board of Advisory
- American Psychological Association (APA), International Affiliate
- International Council of Psychologist (ICP), Member
- International Network for Rational Use of Drugs (INRUD), Core Member
- Asia & Pacific Network of the International Forum for Social Sciences in Health (APNET), 1993-1998, Steering Committee, South East Asia
- International Association for Cross Cultural Psychology (IACCP), Member & Convenor for IACCP Congress XVI, Yogyakarta, July 15-19, 2002
Themocracy