Azkiyah S, Mulyanto. The Principal’s Leadership Role in Efforts to Improve Teacher Work Discipline at SD Negeri Kalbir . eduline j. educ. learn. innov. [Internet]. 2023 Dec. 4 [cited 2026 May 28];3(4):606-17. Available from: https://jurnal.ahmar.id/index.php/eduline/article/view/2198