Yulasri, Ratih, Syahril Syahril, Yulianto Santoso, and Tia Ningrum. 2022. “Disiplin Belajar Siswa Di SMK Negeri 2 Batusangkar”. Journal of Educational Administration and Leadership 2 (3), 312-16. https://doi.org/10.24036/jeal.v2i3.229.