Team, Support. “Monoid of Cohypersubstitutions of Type $\tau=(n)$: Darunee Boonchari, Kittisak Saengsura”. Thai Journal of Mathematics 14, no. 1 (April 1, 2016): 191–201. Accessed May 18, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/590.