“Characteristics of the Oil Water Contact Zone of Nhar Umr and Mishrif Reservoirs in Kumait and Dujaila Oil Fields, Southern Iraq, Using Vp/Vs Ratio and Porosity Logs Data”, Iraqi Journal of Science, vol. 61, no. 11, pp. 3009–3016, Nov. 2020, doi: 10.24996/ijs.2020.61.11.22.