Guatusmal-Gelpud, C., Escobar-Pachajoa, L. D., Meneses-Buitrago, D. H., Cardona-Iglesias, J. L. and Castro-Rincón, E. (2020) “Production and quality of Tithonia diversifolia and Sambucus nigra high andean colombian tropic”, Agronomía Mesoamericana, 31(1), pp. 193–208. doi: 10.15517/am.v31i1.36677.