GEMAWATI, S.; MASHADI, M.; M, M. .; FITRIA, E. fq-Derivation of BP-Algebras. Journal of the Indonesian Mathematical Society, [S. l.], v. 29, n. 2, p. 235–244, 2023. DOI: 10.22342/jims.29.2.1448.235-244. Disponível em: https://jims-a.org/index.php/jimsa/article/view/1448. Acesso em: 17 may. 2024.