J. S. Ortiz Flórez, S. E. Cancino, J. C. Montañez Romero, C. A. Gualdrón Guerrero, G. O. Cancino Escalante, and C. Villamizar Quiñonez, Nature tourism as a driver of sustainable development in the province of Pamplona, ​​Norte de Santander. Sello Editorial Unipamplona, 2025. Accessed: Jul. 22, 2026. Available: https://books.unipamplona.edu.co/index.php/editorial/catalog/book/100