YESHKEYEV, A.R.; MUSSINA, N.M. Small models of hybrids for special subclasses of Jonsson theories. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 95, n. 3, p. 68–73, 2019. DOI: 10.31489/2019m2/68-73. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/297. Acesso em: 7 jul. 2025.