“The Soils of the Ulaga Micro-Watershed and Their Link to Water Resource Availability”. REVISTA AMBIENTAL AGUA, AIRE Y SUELO 2, no. 2 (December 25, 2007): 70–79. Accessed October 16, 2025. https://ojs.unipamplona.edu.co/index.php/aaas/article/view/2041.