Ridha, A., Junaidi, J., Mustopa Yakub , A., Harbes, B., & Tasya Huida, T. H. (2023). The Effect of Principal Supervision on Teacher Performance at Prof Dr Hamka Maninjau Islamic Boarding School. GIC Proceeding, 1(1), 01–07. https://doi.org/10.30983/gic.v1i1.137