URBANO-URBANO, Ivana Fernanda; GAVIRIA-GARCÉS, Neyer Farley; PRADA-NÚÑEZ, Raúl. Difficulties in learning the concept of area and problem solvin. Mundo FESC Journal, [S. l.], v. 11, n. S6, p. 138–155, 2021. Disponível em: https://www.fesc.edu.co/Revistas/OJS/index.php/mundofesc/article/view/1114. Acesso em: 18 may. 2024.