YULIANA, L. .; SUGIYONO, S.; PRASOJO, L. D. . Managerial Performance of State Vocational High School Principals in Yogyakarta Special Province, Indonesia. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 18, n. 10, p. 142–160, 2019. Disponível em: https://www.ijlter.net/index.php/ijlter/article/view/482. Acesso em: 11 sep. 2026.