TORO CASTAÑO, D. R.; ROJAS OTERO, E. . Presentation of the program "degree in environmental education". Luna Azul, [S. l.], n. 3, p. 2 de 6, 1997. Disponível em: https://revistasojs.ucaldas.edu.co/index.php/lunazul/article/view/1551. Acesso em: 27 sep. 2024.