Adrian Furnham and Carl Fudge, “The Five Factor Model of Personality and Sales Performance,” Journal of Individual Differences 29, no. 1 (January 2008): 11–16; Murray R. Barrick, Michael K. Mount, and Judy P. Strauss, “Conscientiousness and Performance of Sales Representatives: Test of the Mediating Effects of Goal Setting,” Journal of Applied Psychology 78, no. 5 (October 1993): 715–22 (выделение добавлено автором).