Erhard, R. (1985). Sex Education during Adolescence, In: Ziv, A. (Ed.), The Unusual Age. Tel Aviv: Papyrus. (pp.47-80). (in Hebrew)
Erhard, R. (1995). A Program for Drug Abuse Prevention in the Education System - From the Theoretical Model to Application in the Classroom. In: Green, D. (Ed.). Drugs: Facts, Questions, and Problems. The Ministry of Defense Publishers. (pp. 289-305). (in Hebrew)
Erhard, R., Deshevesky , A. (1999). School Counseling – Essence and Action, In: Peled, A. (Ed.), Jubilee for the Education System in Israel. Jerusalem: The Ministry of Education, Culture, and Sport. (pp. 701-717). (in Hebrew)
Erhard, R. (2000). “There is Good in Every Bad” – Diagnosing Violent Phenomena as a Catalyst for a Change in School Culture. In: Tzedikyahu, S., Peled, M. (Eds.). Education in the Third Millennium. Beit Berl. (pp. 29-45). (in Hebrew)
R. Erhard (2000). Immigrant Youth: Ethiopians in Israel, In: Gibson-Cline, J. (ed), Youth and Coping in Twelve Nations. London: Routledge. (pp. 203-218).
Erhard. R. (2003). The Development of the Psychological Counseling Service (PCS) With Regard to the Perception of the “Mental Wellness” of Students in the Education System, In: Shapira, R., Dror, Y., Nevo, D. Educational Policy in Israel in the Years of 2000. The School of Education, Tel Aviv University. (in Hebrew).
Erhard, R. (2008). Between Hope and Despair: Ethiopian Immigrant Youth in Israel. In N. Arthur, N. & Pederson, P. (Eds.), Case Incidents in Counseling for International Transitions (pp. 245-259). Alexandria, VA: American Counseling Association.
Zatz, Y. & Erhard, R., (2013) Gender in the Counseling Discourse. In: Alpert, B., Shlasky, S. (Ed.),
A Close Look at the School and the Classroom: Ethnographic Studies on Education. Tel Aviv: Mofet. (pp. 475-504). (in Hebrew).
Erhard, R. (2014) Empowering Consulting. In: Raviv, A., Bolless, R. (Ed.),
Current Trends in Educational Counseling: Theory and Practice. Bnei-Brak: Sifriat Poalim.(pp. 231-262). (in Hebrew).
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Drug Abuse in Israel. Jerusalem: National Authority Anti Drug Abuse