Mustafa, Mohammed A., et al. “Comparison Between Numerical and an Experimental Results of Pressure Drop in a Perforated Horizontal Wellbore With a 90° Perforations Phasing”. Basrah Journal for Engineering Sciences, vol. 23, no. 1, July 2023, pp. 117-2, https://doi.org/10.33971/bjes.23.1.15.