Yayi Solihah DM, and Helmawati Helmawati. “rincipal anagement in mproving the rofessional ompetence of ocational chool eachers in ianjur egency”. Journal of Science and Education (JSE) 6, no. 2.2 (March 8, 2026): 1-11. ccessed October 11, 2026. https://jse.rezkimedia.org/index.php/jse/article/view/683.