Hana Maria Uli Lumbanraja. “The Effect of Training, Teaching Experience, and Organizational Culture on the Professionalism of State Senior High School Teachers”. SILABUS: Jurnal Ilmu dan Inovasi Pendidikan 1, no. 2 (August 21, 2024): 40–56. Accessed November 20, 2024. https://berugakbaca.org/index.php/silabus/article/view/129.