Prutzman, P., Stern, L., Burger, M. L., & Bodenhamer, G. (1988). The friendly classroom for a small planet. Philadelphia: New Society Publishers. Sadalla, G., Holmberg, M., & Halligan, J. (1990). Conflict resolution: An elementary school curriculum. San Francisco: Community Boards. Selfridge, J. (2004). The Resolving Conflict Creatively Program: How we know it works. Theory into Practice, 43(1)...