Berthon, Pierre R.; Pitt, Leyland F.; McCarthy, Ian; Kates, Steven M. (1 January 2007). "When customers get clever: Managerial approaches to dealing with creative consumers". Business Horizons. 50 (1): 39–47. doi:10.1016/j.bushor.2006.05.005. /wiki/Doi_(identifier)
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Berthon, Pierre R.; Pitt, Leyland F.; McCarthy, Ian; Kates, Steven M. (1 January 2007). "When customers get clever: Managerial approaches to dealing with creative consumers". Business Horizons. 50 (1): 39–47. doi:10.1016/j.bushor.2006.05.005. /wiki/Doi_(identifier)