Wongoutong, Chantha, Jirawan Jitthavech, and Vichit Lorchirachoonkul. “An Application of Nelder-Mead Algorithm in Response Surface Methodology: CCD”. Thailand Statistician 15, no. 2 (July 8, 2017): 167–183. Accessed April 29, 2024. https://ph02.tci-thaijo.org/index.php/thaistat/article/view/92206.