Timang, M., B. Nadeak, and H. Sihotang. “THE INFLUENCE OF THE PRINCIPAL’S MANAGERIAL ABILITY, TRAINING AND SPIRITUAL INTELLIGENCE ON TEACHER PERFORMANCE AT SMPN 1 RANTEPAO”. International Journal of Research -GRANTHAALAYAH, vol. 9, no. 2, Mar. 2021, pp. 248-56, doi:10.29121/granthaalayah.v9.i2.2021.3526.