Mahmood D, Al-Zubaidi NS, Sidek A, Ganie KA, Yahya MN, Mir F, et al. Response Surface Methodology Applications in Drilling Engineering: Toward Multi-Objective Optimization of Bit Hydraulic Performance—A Critical Review. ETES [Internet]. 2026 Jun. 30 [cited 2026 Aug. 5];2(2):1-21. Available from: https://etes.alnaji-uni.edu.iq/index.php/etes/article/view/15