Riz-Vega, Jaime, and José Cruz Carrillo-Rodríguez. 2005. “Selection of Sorghum (Sorghum Bicolor) and Millet (Pennisetum Americanum) Cultivars by Production Efficiency and Forage Quality Indexes”. Agronomía Mesoamericana 16 (2):153-60. https://doi.org/10.15517/am.v16i2.11868.