Team, S. “Identities in Graph Algebras of Type (n, N − 1, . , 3, 2, 0): T. Poomsa-Ard, J. Wetweerapong, C. Khiloukom, T. Musuntei”. Thai Journal of Mathematics, vol. 3, no. 2, Dec. 2005, pp. 201-8, https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/25.