Team, Support. “Factorisable Monoid of Generalized Hypersubstitutions of Type $\tau=(2)$: Ampika Boonmee, Sorasak Leeratanavalee”. Thai Journal of Mathematics 13, no. 1 (April 1, 2015): 213–225. Accessed December 22, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/503.