 The Golden Ratio: The Story of Phi, the World's Most Astonishing Number by Mario Livio, 29 October, 2002
 A Mathematical History of the Golden Number by Roger HerzFischles, Roger HerzFischler, February, 1998
 The Golden Ratio and Fibonacci Numbers by Richard A. Dunlap, March, 1998
 Der goldene Schnitt und seine Bedeutung fÃ¼r die Harmonik by Helmut Reis,
 The Golden Ratio: The Story of Phi, the World's Most Astonishing Number by Mario Livio, 29 October, 2002
 A Mathematical History of the Golden Number by Roger HerzFischles, Roger HerzFischler, February, 1998
 The Golden Ratio and Fibonacci Numbers by Richard A. Dunlap, March, 1998
 Der goldene Schnitt und seine Bedeutung fÃ¼r die Harmonik by Helmut Reis,
