Afja, O. D., Arif, M., Syam, H. ., Sesmiarni, Z. and Syamsurizal, S. (2023) “The Effect of Supervision on Improving Teacher Professional Competence at SMAN 3 Bukittinggi”, GIC Proceeding, 1(1), pp. 155–162. doi: 10.30983/gic.v1i1.109.