Afja OD, Arif M, Syam H, Sesmiarni Z, Syamsurizal S. The Effect of Supervision on Improving Teacher Professional Competence at SMAN 3 Bukittinggi. GIC [Internet]. 2023 Jul. 31 [cited 2026 May 19];1(1):155-62. Available from: https://proceedings.uinbukittinggi.ac.id/index.php/gic/article/view/109