Zulkarnain, Z., Pitriyani, P. and Halim, A. 2022. Work Ethics, Progressive Discipline, and Work Engagement on Job Satisfaction of Labuhanbatu District Education Service Employees. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE). 5, 2 (Sep. 2022), 919-935. DOI:https://doi.org/10.31538/iijse.v5i2.3927.