Rahman, Hawkar Kh., Aras N. Yosif, and Bushra Q. Mahmud. 2020. “An Investigation of Obstacles Affecting Implementation of Job Rotation Process: A Case Study of Erbil Administrative Technical Institute and Shaqlawa Technical Institute”. Polytechnic Journal of Humanities and Social Sciences 1 (1):38-47. https://doi.org/10.25156/ptjhss.v1n1y2020.pp38-47.