Fuadi, A., Nasution, W.N. and Wijaya, C. 2023. Management of Teacher Professionalism Development: A Multi-Site Study of State Madrasah Aliyah in Langkat Regency . Tafkir: Interdisciplinary Journal of Islamic Education. 4, 1 (May 2023), 180–199. DOI:https://doi.org/10.31538/tijie.v4i1.444.