Mohammed NQ, Hussin AA. Measuring the availability of Some Requirements of the international standard (ISO21001:2018) A Survey of the teaching staff in several faculties of Kirkuk University. Tikrit J. Admin. Econ. Sci. [Internet]. 2021 Dec. 31 [cited 2026 Oct. 25];17(56, 3):126-45. Available from: https://www.tjaes.org/index.php/tjaes/article/view/1503