GAMARRA ASTUHUAMAN, G.; PUJAY CRISTÓBAL, O. E. Problem Solving, Skills and Academic Performance when Teaching Mathematics. Revista Educación - Journal of Education, [S. l.], v. 45, n. 1, p. 170–182, 2020. DOI: 10.15517/revedu.v45i1.41237. Disponível em: https://revistas.ucr.ac.cr/index.php/educacion/article/view/41237. Acesso em: 16 aug. 2024.