KAYANI, MUHAMMAD BILAL, et al. “The Aftermath of Employees’ Psychological Contract Breach With The Moderation of Proactive Personality”. The Journal of Contemporary Issues in Business and Government, vol. 27, no. 3, June 2021, pp. 2261-70, https://www.cibgp.com/index.php/1323-6903/article/view/1836.