The properties of amalgamation and joint embedding in the meaning of positive Jonsson theories. Kazakh Mathematical Journal, [S. l.], v. 25, n. 2, p. 6–18, 2025. DOI: 10.70474/18bp7004. Disponível em: https://mathjournal.kz/index.php/kmj/article/view/42. Acesso em: 20 apr. 2025.