BAYONA, Anthony Julius F.; MALANG, Bernandino P.; MALANG, Jocelyn DS.; POSO, Kathrine Ann L.; FACTURANAN, Marc Dave. 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, Malang, Indonesia, v. 7, n. 1, p. 430–440, 2026. DOI: 10.11594/ijmaber.07.01.32. Disponível em: https://www.ijmaberjournal.org/index.php/ijmaber/article/view/3165. Acesso em: 26 jan. 2026.