Ghadernejad, Aliakbar, et al. “Performance Enhancement Model for Sports Coaches Based on Motivational Job Factors With Emphasis on Herzberg’s Two-Factor Motivation-Hygiene Theory”. Health Nexus, vol. 2, no. 1, Jan. 2024, pp. 9-20, https://doi.org/10.61838/kman.hn.2.1.2.