Proposal for Academic Achievement and Permanence of Students in the 7th Grade (1). Revista Electrónica Educare, [S. l.], v. 15, p. 3–23, 2011. DOI: 10.15359/ree.15-Ext.1. Disponível em: https://www.revistas.una.ac.cr/index.php/EDUCARE/article/view/1681.. Acesso em: 18 dec. 2024.