HAMDAN, H.; YULIANA , L. .; YOUSSOUF , K. . 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. Journal of Loomingulisus ja Innovatsioon, [S. l.], v. 3, n. 2, p. 162–171, 2026. DOI: 10.70177/innovatsioon.v3i2.2252. Disponível em: https://research.adra.ac.id/index.php/innovatsioon/article/view/2252. Acesso em: 27 jul. 2026.