Hamdan Hamdan and Lia Yuliana 2025. The Influence of Principals’ Managerial Competence, Academic Supervision and Teachers’ Education Level on the Performance of Public Junior High School Teachers in Kuala Kampar Sub-District. Jurnal Bintang Pendidikan Indonesia. 3, 2 (Feb. 2025), 68–82. DOI:https://doi.org/10.55606/jubpi.v3i2.3717.