MAN TEACHER PERFORMANCE OPTIMIZATION THROUGH ENHANCED WORK DISCIPLINE AND PROFESSIONAL COMPETENCE AT UPTD SD NEGERI 2 TULUNG BALAK. j. manaj. pendidik. [Internet]. 2026 Aug. 31 [cited 2026 Sep. 18];11(4):9987-10000. Available from: https://ejurnal.stkip-pessel.ac.id/index.php/jmp/article/view/3531