Analysis of Open-Ended Problem-Solving Ability in Mathematics in Terms of Cognitive Style. Riemann: Research of Mathematics and Mathematics Education, [S. l.], v. 6, n. 2, p. 127–138, 2024. DOI: 10.38114/8145jx47. Disponível em: https://journal.sanagustin.ac.id/index.php/reimann/article/view/29.. Acesso em: 13 may. 2026.