Mohammed, N. Q., & Hussin, A. A. (2021). The Impact of Some Requiremen ts of the International Standard (ISO21001:2018) in Supporting Morale A Survey of the teaching staff in several faculties of Kirkuk University. Tikrit Journal of Administrative and Economic Sciences, 17(56, 2), 179–195. https://doi.org/10.25130/tjaes.17.56.2.10