Galindo, Juana, Niurca Gonz?lez, Areadne Sosa, Tom?s E. Ruiz, Verena Torres, Ana Irma Aldana, Humberto D?az, Onidia Moreira, Luc?a Sarduy, and Aida C. Noda. 2011. “Effect of Tithonia Diversifolia (Hemsl.) Gray (Giant Mexican Sunflower) on the Population of Rumen Protozoa and Methanogens under in Vitro Conditions”. Cuban Journal of Agricultural Science 45 (1). https://www.cjascience.com/index.php/CJAS/article/view/185.