Team, S. “Independent Sets of m,n-Gonal Graphs: Asekha Khantavchai, Thiradet Jiarasuksakun”. Thai Journal of Mathematics, vol. 14, no. 1, Apr. 2016, pp. 1-12, https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/576.