Amin, Alkausar, and Nursapiah Harahap. “Implementation of Interpersonal Communication of The Principal of RA Al-Kautsar in Motivation of Teacher Professionalism”. Daengku: Journal of Humanities and Social Sciences Innovation, vol. 2, no. 3, July 2022, pp. 311-5, doi:10.35877/454RI.daengku995.