Amelia, C., A. Aprilianto, D. Supriatna, I. Rusydi, and N. Zahari. “The Principal’s Role As Education Supervisor in Improving Teacher Professionalism”. Nidhomul Haq : Jurnal Manajemen Pendidikan Islam, Vol. 7, no. 1, Apr. 2022, pp. 144-55, doi:10.31538/ndh.v7i1.2075.