FAUSTINO CRUZ, S. D.; LÓPEZ-ORNELAS, M.; ORGANISTA SANDOVAL, J.; CRUZ HERNÁNDEZ, S. Analysis of the free digitalized textbook based on the attributes of links in the subjects of natural sciences, history and geography in Mexico. Texto Livre, Belo Horizonte-MG, v. 12, n. 2, p. 62–79, 2019. DOI: 10.17851/1983-3652.12.2.62-79. Disponível em: https://periodicos.ufmg.br/index.php/textolivre/article/view/16843. Acesso em: 17 jul. 2024.