Ramírez-Pérez, Y., R. C. Herrera-Herrera, D. M. Verdecia, R. S. Herrera, E. Chacón-Marcheco, J. L. Ledea, and J. L. Ramírez. “Effect of Regrowth Age and Climatic Factors on Primary Metabolites Content of Tithonia Diversifolia”. Cuban Journal of Agricultural Science, vol. 57, Mar. 2023, https://www.cjascience.com/index.php/CJAS/article/view/1073.