Mohammed Rasheed Mustafa Suleiman, and James Yohana Odeesh. “Role of Systems Thinking in Enhancing Human Resource Planning: An Analytical Study of the Opinions of a Sample of Administrative Leaders in Governmental Organizations in Duhok City”. Tikrit Journal of Administrative and Economic Sciences, vol. 22, no. 74 part 2, June 2026, pp. 304-29, doi:10.25130/tjaes.22.74.2.15.