Callo, E. C., and M. G. Asilo. “School Head’s Professional Identity, Emotional Intelligence and Perfectionism: Three-Tier Factors to Advance Pedagogical Leadership”. International Journal of Multidisciplinary: Applied Business and Education Research, Vol. 5, no. 3, Mar. 2024, pp. 949-56, doi:10.11594/ijmaber.05.03.18.