Yusutria, Y., Hopid , A. and Febriana , R. 2022. Leadership of School Principals to Improving Teacher Professionalism at Muhammadiyah School. Al-Misbah (Jurnal Islamic Studies). 10, 2 (Dec. 2022), 144–155. DOI:https://doi.org/10.26555/almisbah.v10i2.6763.