Sen Sat Jantusen, B. A. . Pakpahan, and A. S. . Sitompul. “The Relationship Between Principal Competency And School Culture Towards Teacher Performance In State Junior High School”. Jurnal Ilmu Pendidikan Dan Sosial, vol. 5, no. 1, Mar. 2026, pp. 202-19, doi:10.58540/jipsi.v5i1.1497.