Hefner, Robert W. Social Legacies and Possible Futures. Indonesia: The GreatTransition. : 120 [2016-02-04]. (原始内容存档于2015-04-20). Youth Gangs and Otherwise
(link) Kenneth E. Boulding. The Meaning of the Twentieth Century: The GreatTransition. London: George Allen & Unwin. 1964: 87. Webb, Kieran. The Continued