1. COSTINIUK, Bill, ROBICHEAU, Suzanne and SHAVER, David; "Crisis Management:
Keys to Prevention and Intervention", Toronto 1999, ISBN: 0-920930-90-5
2. Association for Supervision and Curriculum Development, David J.
Schonfeld; "How to Prepare for and Respond to a Crisis", Assn for
Supervision & Curriculum, 2002 ISBN: 0871207222