CORNEJO, J. M.; SANKAPPANAVAR, H. P. Semi-Heyting Algebras and Identities of Associative Type. Bulletin of the Section of Logic, [S. l.], v. 48, n. 2, p. 117–135, 2019. DOI: 10.18778/0138-0680.48.2.03. Disponível em: https://czasopisma.uni.lodz.pl/bulletin/article/view/5436. Acesso em: 16 apr. 2024.