KUMDUANG, T. The Algebras of Atomic Formulas Generated by Mappings with an Invariant Set. Burapha Science Journal, Chonburi, Thailand, v. 29, n. 3 September-December, p. 1022–1032, 2024. Disponível em: https://li05.tci-thaijo.org/index.php/buuscij/article/view/373. Acesso em: 4 apr. 2025.