Bayona, Anthony Julius F., Bernandino P. Malang, Jocelyn DS. Malang, Kathrine Ann L. Poso, and Marc Dave Facturanan. “Leadership Competencies and Role Effectiveness of Managers: A Case Study in Selected Public Sectors of Quezon City for Basic and Applied Management Research Journal”. International Journal of Multidisciplinary: Applied Business and Education Research 7, no. 1 (January 25, 2026): 430–440. Accessed January 26, 2026. https://ijmaberjournal.org/index.php/ijmaber/article/view/3165.