Altahtamouni, Farouq, Ryoof Almutawa, and Shikhah Alyousef. 2018. “Investigating the Factors Affecting the Profitability of Saudi Industrial Companies by Using DuPont Model ”. Journal of Economic, Administrative and Legal Sciences 2 (4): 65-53. https://doi.org/10.26389/AJSRP.F150118.