Adriman, Ismail, Bahrun. Managerial Competency and Social Competency of School Principals in Improving the Quality of Education in Vocational Schools. tijie [Internet]. 2024 Oct. 25 [cited 2026 Aug. 24];5(4):612-23. Available from: https://www.pasca.jurnalikhac.ac.id/index.php/tijie/article/view/1188