K. G. Frigillana, R. M. C. Muldong, H. T. Tiongson, J. R. Aduna, and N. T. Florencondia, “Assessment of Holy Angel University – School of Engineering and Architecture Administrators as Transformational and Servant Leaders”, etj, vol. 8, no. 1, pp. 1807–1813, Jan. 2023.