Reganit, Virgilio, and Glenda Mina. “Investigative Leadership and Operational Accountability in National Bureau of Investigation Services”. International Journal of Education, Research, and Innovation Perspectives 2, no. 6 (June 11, 2026): 844–854. Accessed June 12, 2026. https://ijerip.erio.org.ph/index.php/articles/article/view/964.