AL-Azzawi, O.M., Mohammed, H.I., Mousa, H.J., Rabet, A.O. and Hussein, S.K. 2022. Mathematical Model & Feasibility Study for Construction an Invested Refinery of 100,000 (bbl / Day) in AL-Nasiriya Governorate. Journal of Petroleum Research and Studies. 12, 1(Suppl.) (Apr. 2022), 150-167. DOI:https://doi.org/10.52716/jprs.v12i1(Suppl.).628.