Igwe, P.I. and Onyali, L.C. 2026. PRINCIPALS’ APPLICATION OF HENRI FAYOL’S ADMINISTRATIVE PRINCIPLES FOR MANAGERIAL EFFECTIVENESS IN SECONDARY SCHOOLS IN ANAMBRA STATE. International Journal of Premium Multidisciplinary Innovative Research. 1, 3 (Oct. 2026), 33–47. DOI:https://doi.org/10.5281/zenodo.23167642.