Ikponmwosa-Eweka O. and Ozigagun A. “Application of Response Surface Methodology (RSM) to Predict Penetration Area During TIG Welding at Steady State Condition”. NIPES - Journal of Science and Technology Research 5, no. 3 (August 27, 2023). Accessed September 19, 2024. https://journals.nipes.org/index.php/njstr/article/view/737.