Guatusmal-GelpudCarolina, Escobar-PachajoaLaura, Meneses-BuitragoDiego, Cardona-IglesiasJuan, and Castro-RincónEdwin. “Production and Quality of Tithonia Diversifolia and Sambucus Nigra High Andean Colombian Tropic”. Agronomía Mesoamericana 31, no. 1 (January 1, 2020): 193-208. Accessed April 4, 2020. https://revistas.ucr.ac.cr/index.php/agromeso/article/view/36677.