Sartika E, Destiniar D, Harapan E. The Influence of Principal Leadership and Teacher Performance on The Quality of State Junior High School Education in Tebing Tinggi District. gw [Internet]. 2024 Dec. 30 [cited 2025 Oct. 16];15(3):924–933. Available from: https://gemawiralodra.unwir.ac.id/index.php/gemawiralodra/article/view/768