Высшая цель. Секрет, который поддерживает вас каждую минуту

• Tye, Joe, with National Business Employment Weekly. Personal Best. New York: John Wiley & Sons, 1996.

• Tye, Joe. Never Fear, Never Quit. New York: Dell, 1997.

• Tye, Joe. Your Dreams Are Too Small. New York: Executive Books, 2002.

• Webbe, Gale D. The Night and Nothing. New York: Harper Collins, 1983.