XIN, X. L.; BORZOOEI, R. A.; JUN, Y. B. Positive Implicative Soju Ideals in BCK-Algebras. Bulletin of the Section of Logic, [S. l.], v. 48, n. 1, p. 1–18, 2019. DOI: 10.18778/0138-0680.48.1.01. Disponível em: https://czasopisma.uni.lodz.pl/bulletin/article/view/5381. Acesso em: 29 apr. 2024.