“Impact of Extroversion and Narcissism on in Role and Extra Role Performance: Moderating Role of Impression Management Motives” (2015) Pakistan Journal of Commerce and Social Sciences (ISSN 1997-8553), 9(1), pp. 96–119. Available at: https://jes.ac.pk/index.php/jes/article/view/433 (Accessed: 16 October 2025).