M. A. Nikbakhsh and M. . . Fatemikiya, “Developing a Human Resource Productivity Model in the Petrochemical Industry: Integrating Individual–Organizational Competencies and HR Innovation”, JPDOT, vol. 4, no. 2, pp. 1–21, Apr. 1405, Accessed: Nov. 15, 2026. [Online]. Available: https://www.journalpdot.com/index.php/jpdot/article/view/274