Sepúlveda Gallego LE. "Praeizar" the institutional educational project: an alternative to include the environmental dimension in basic and secondary education. Rev. luna azul (En línea) [Internet]. 2010 Jan. 1 [cited 2024 Jul. 3];(30):142-63. Available from: https://revistasojs.ucaldas.edu.co/index.php/lunazul/article/view/1149