Hussein Ali, A.A. and A. Al-Jumaili, J.S. 2021. The role of investment in developing the agricultural sector in Iraq for the period (1989-2019). Tikrit Journal of Administrative and Economic Sciences. 17, 56, 3 (Dec. 2021), 575–587. DOI:https://doi.org/10.25130/tjaes.17.56.3.34.