Luangpaiboon, P. “A Study of the Nelder and Mead Modified Simplex Method with the Second-Order Designs on Uni-and Dual- Response Systems”. CURRENT APPLIED SCIENCE AND TECHNOLOGY 5, no. 1 (November 12, 2018): 359–365. accessed September 21, 2026. https://li01.tci-thaijo.org/index.php/cast/article/view/162342.