Hanim Z. Principal Managerial Competence in Realizing Excellent and Quality Vocational High Schools at East Borneo. eduline j. educ. learn. innov. [Internet]. 2022 Dec. 18 [cited 2026 Nov. 4];2(4):517-25. Available from: https://jurnal.ahmar.id/index.php/eduline/article/view/1290