H. Reyes Pineda and L. C. Cardona Hernández., “Environmental education as a necessary strategy for planning new regional approaches in the department of Meta”, Sophia, vol. 11, no. 2, pp. 169–184, Jul. 2015, Accessed: Nov. 08, 2026. [Online]. Available: https://revistas.ugca.edu.co/index.php/sophia/article/view/350