Lumbantoruan, Lina, Widiastuti Widiastuti, and Wiyun Philipus Tangkin. “Penerapan Rules and Procedures Untuk Meningkatkan Kedisiplinan Siswa”. Jurnal Educatio FKIP UNMA 7, no. 2 (June 28, 2021): 546–553. Accessed April 26, 2025. https://ejournal.unma.ac.id/index.php/educatio/article/view/1084.