Tarq, Shamam, and Dahlia A. Al-Obaidi. “Identifying Average Reservoir Pressure in Multilayered Oil Wells Using Selective Inflow Performance (SIP) Method”. Iraqi Journal of Chemical and Petroleum Engineering, vol. 24, no. 3, Sept. 2023, pp. 113-2, https://doi.org/10.31699/IJCPE.2023.3.11.