Panthira Jamrunroj, and Aua-aree Boonperm. “The Circuit Direction Search Algorithm for Solving Two-Dimensional Linear Programming Problems”. Science & Technology Asia, vol. 28, no. 1, Mar. 2023, pp. 48-59, https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/248873.