Aybas, Meryem, and Ahmet Cevat Acar. 2017. “The Effect of HRM Practices on Employees’ Work Engagement and the Mediating and Moderating Role of Positive Psychological Capital”. International Review of Management and Marketing 7 (1):363-72. https://econjournals.org.tr/index.php/irmm/article/view/3534.