Ramadha Yanti Parinduri, Khairuddin Tampubolon, and Barham Siregar, “THE INFLUENCE OF EDUCATIONAL ADMINISTRATION ON TEACHER PERFORMANCE AT SMA NEGERI 1 SERBAJADI, SERBAJADI DISTRICT, DELI SERDANG REGENCY”, IJERLAS, vol. 3, no. 1, pp. 235–248, Jan. 2023.