Arif, M., Idrus, Hasan, & Nurjayanti, I. (2026). The Principal’s Role in Improving Teacher Performance at Junior High School of SMP Negeri 18 Sigi. Journal of Scientific Research, Education, and Technology (JSRET), 5(2), 1454–1473. https://doi.org/10.58526/jsret.v5i2.1127