YESHKEYEV, A.R.; MUSSINA, N.M. Properties of hybrids of Jonsson theories. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 92, n. 4, p. 99–104, 2018. DOI: 10.31489/2018m4/99-104. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/257. Acesso em: 1 jul. 2025.