Sutikno, Sutikno. “Principal’s Managerial Performance to Improve Quality of Education at Vocational High School”. Scaffolding: Jurnal Pendidikan Islam dan Multikulturalisme 4, no. 3 (January 1, 2023): 470-483. Accessed May 19, 2024. https://ejournal.insuriponorogo.ac.id/index.php/scaffolding/article/view/2134.