Syawal, Syawal. “The Principal of Madrasah Examplary to Improve Teacher Performance at MIS Al Azhar Sido Makmur Labuhanbatu”. Edunesia : Jurnal Ilmiah Pendidikan, vol. 2, no. 3, Oct. 2021, pp. 696-04, doi:10.51276/edu.v2i3.188.