Jirakitpuwapat, W., Kumam, P., Khammahawong, K. and Dhompongsa, S. (2021) “A PRACTICAL APPROACH TO OPTIMIZATION”, Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO), 12(1), pp. 13–20. available at: https://ph03.tci-thaijo.org/index.php/jnao/article/view/2794 (accessed: 2 September 2026).