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M. Alang Khairun Nizar 2023. THE EFFECT OF PRINCIPAL’S LEADERSHIP AND EDUCATIONAL PERFORMANCE ON IMPROVING THE QUALITY OF EDUCATION IN MTS BUSTANUL’ULUM GUPPI TEBING TINGGI CITY. International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET). 2, 9 (Aug. 2023), 522–530. DOI:https://doi.org/10.54443/ijset.v2i9.209.