Kairupan, Marina, Joulanda Altje Meiske Rawis, and Romi Junior Mongdong. 2026. “The Influence of Principal Leadership and Academic Supervision on Teachers’ Teaching Performance at SMA Negeri 1 Bitung”. International Journal of Science and Environment (IJSE) 6 (2):28-39. https://doi.org/10.51601/ijse.v6i2.229.