Analysis of Mathematical Problem-Solving Ability on Real Set. Riemann: Research of Mathematics and Mathematics Education, [S. l.], v. 6, n. 3, p. 246–255, 2024. DOI: 10.38114/reimann.v6i3.94. Disponível em: http://journal.sanagustin.ac.id/index.php/reimann/article/view/94.. Acesso em: 18 apr. 2026.