Waruwu, N., F. Arifin, and M. Alam. “The Principal’s Attitude on Teacher Performance: A Case Study of Senior High School in South Tangerang Area”. Nidhomul Haq : Jurnal Manajemen Pendidikan Islam, Vol. 7, no. 1, Mar. 2022, pp. 53-63, doi:10.31538/ndh.v7i1.1673.