MOHAMMED, Najlaa Qassim; HUSSIN, Ahmed Ali. 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, [S. l.], v. 17, n. 56, 2, p. 179–195, 2021. DOI: 10.25130/tjaes.17.56.2.10. Disponível em: https://www.tjaes.org/ojs/index.php/tjaes/article/view/1470. Acesso em: 7 mar. 2026.