SEPÚLVEDA GALLEGO, L. E. "Praeizar" the institutional educational project: an alternative to include the environmental dimension in basic and secondary education. Revista Luna Azul (On Line), [S. l.], n. 30, p. 142–163, 2010. Disponível em: https://revistasojs.ucaldas.edu.co/index.php/lunazul/article/view/1149. Acesso em: 24 aug. 2024.