Bécquer, J. C., U. Ávila, A. Puentes, J. A. Nápoles, T. Cancio, E. Mendinilla, I. Muir, and Y. Madrigal. “Response of Cenchrus Ciliaris L. (Buffel Cv. Formidable), Innoculated With Bradyrhizobium Sp. And Trichoderma Harzianum, under Drought Stress”. Cuban Journal of Agricultural Science, vol. 51, no. 2, Dec. 2017, https://cjascience.com/index.php/CJAS/article/view/732.