VALDÉS CASTRO, Pablo; VALDÉS CASTRO, Rolando. Study of the increase of the CO2 atmospheric concentration in an introductory university course of sciences. Iberoamerican Journal of Education, [S. l.], v. 65, n. 2, p. 1–16, 2014. DOI: 10.35362/rie652317. Disponível em: https://rieoei.org/RIE/article/view/317. Acesso em: 18 jul. 2024.