Sinaga P. THE INFLUENCE OF PRINCIPAL LEADERSHIP, TEACHER COMPETENCE, AND TEACHER COMMITMENT ON THE PERFORMANCE OF VOCATIONAL HIGH SCHOOL TEACHERS AT YADIKA SCHOOLS IN WEST JAVA. satyamandiri [Internet]. 2025 Nov. 28 [cited 2026 Aug. 13];11(2):111-8. Available from: https://jekobis.org.103-247-8-217.cpanel.site/ojs/index.php/satyamandiri/article/view/560