Abundant Peace—the Biography of Morehei Ueshiba, the founder of Aikido
. Boston: Shambhala, 1987
Stevens, John.
The Secrets of Aikido
. Boston: Shambhala, 1995
Swartz, Robert J. and D.N. Perkins.
Teaching Thinking: Issues and Approaches
. Pacific Grove, CA: Midwest Publications, 1990.
Tannenbaum, Robert and Warren H. Schmidt. "How to Choose a Leadership Pattern."
Harvard Business Review