STRATEGI MANAJERIAL KEPALA SEKOLAH TERHADAP PRODUKTIVITAS KERJA GURU DI SD PIT BHASKARA SUBANG. j. sains manaj. [Internet]. 2023 Feb. 21 [cited 2025 Sep. 18];5(1):34-45. Available from: https://ejurnal.ars.ac.id/index.php/jsm/article/view/956