YESHKEYEV, A.R.; URKEN, G.A. Connection of Jonsson theory with some Jonsson polygons theories. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 95, n. 3, p. 74–78, 2019. DOI: 10.31489/2019m2/74-78. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/301. Acesso em: 2 jul. 2025.