G. C. Rojas, “School Heads’ Managerial Skills and Leadership Grid Styles: A Correlational Study Based on Teachers’ Perceptions in Monreal National High School”, Int. J. Sustain. Integr. Stud., vol. 1, no. 2, pp. 235–244, Sep. 2026, doi: 10.65339/ijsis.V1.I2.78.