Greene, Ted. Modern Chord Progressions. Miami, FL: Warner Brothers Publications, 1985.

Capuzzo, Guy. Theory for the Contemporary Guitarist. Van Nuys, CA: Alfred Publishing Co. 1996.

Goodrick, Mick. The Advancing Guitarist. Milwaukee, WI: Hal Leonard Publishing, 1987.

Green, Ted. Chord Chemistry. Miami, FL: Warner Brothers Publications, 1985.

Greene, Barry. The Inner Game of Music. Garden City, NY: Anchor Press/Doubleday, 1986.