Chaikan, Krittapon, Aniruth Phon-On, and Kittisak Tinpun. 2024. “On the Relative Rank of Orientation-Preserving or Orientation-Reversing Transformation Semigroups With Restricted Range: Annual Meeting in Mathematics 2023”. Thai Journal of Mathematics 22 (1):103–110. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1602.