Team, S. (2021) “Chromatic Numbers of Suborbital Graphs for Some Hecke Groups: Woratham Khangtragool, Khuanchanok Chaichana”, Thai Journal of Mathematics, 19(2), pp. 725–738. Available at: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1191 (Accessed: 21 November 2024).