O. Sihombing, Sabrina, and Margaretha P. Berlianto. “Antecedents of Employee Loyalty in Educational Setting: An Empirical Study”. International Research Journal of Business Studies 10, no. 2 (December 15, 2017): 99–109. Accessed November 16, 2025. https://irjbs.prasetiyamulya.ac.id/index.php/jurnalirjbs/article/view/590.