Tuah Saidi Mardhona S, et al. “LEADERSHIP, EMPLOYEE COMPETENCE, AND FACILITIES AS DETERMINANTS OF SERVICE QUALITY: SELF-EFFICACY MEDIATION AT BATAM CUSTOMS PASSENGER TERMINALS”. International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS), vol. 6, no. 6, Oct. 2026, pp. 3186-94, https://radjapublika.com/index.php/IJEBAS/article/view/6534.