Galtung, Johan. ‘Religions, Hard and Soft.’ In Cross Currents 47/4 (Winter 1997-98).
Kempster, Tony. ‘Religion and War.‘ In CCTS Newsletter 21 (July 2003).
Paige, Glenn D., Chaiwat Satha-Anand (Qader Muheideen) and Sara Gilliatt, eds. Islam and Nonviolence. Honolulu: Center for Global Nonviolence, 2001.
Said, Abdul Aziz and Nathan C. Funk. ‘The Role of Faith in Cross-Cultural Conflict Resolution.’ In Peace and Conflict Studies 9/1 (2002).
Useful online sources:
Quakers, The Religious Society of Friends
More sources available in Bosnian/Croatian/Serbian language.