Muhammad Azmi Tanjung, Lolia Purnama Sari, Najwa Al Fachrani, Aulia Zakiah, and Amelia BR. Kaban, “THE ROLE OF TEACHER SUPERVISION BY THE PRINCIPAL AT SMP COUNTRY 3 PERCUT SEI TUAN”, J.QIER, vol. 1, no. 2, pp. 282–292, Jun. 2024.