Sierra Sánchez, Néstor Fabián. “Rural Extension: The Vital Linkage Between Research and Agricultural Production. Coffee Experiences”. Ciencia y Agricultura 20, no. 3 (September 1, 2023): 17296. Accessed June 30, 2024. https://revistas.uptc.edu.co/index.php/ciencia_agricultura/article/view/17296.