SIRASUNTORN, N.; JONGJIT, D.; SRICHAI , P.; KWANTA, W. Certain Cyclic Hypergroups with Property of Subhypergroup Indices. Burapha Science Journal, Chonburi, Thailand, v. 29, n. 3 September-December, p. 889–901, 2024. Disponível em: https://li05.tci-thaijo.org/index.php/buuscij/article/view/432. Acesso em: 2 sep. 2026.