“Pioneer A New Forage Hybrid of Sorghum Bicolor and Sudan Grass, Sorghum Sudanensis”. The Sudan Journal Of Animal Production المجلة السودانية للانتاج الحيواني, vol. 6, no. 6, June 1993, p. 7, https://sud-jap.sd/Journal/index.php/sjap/article/view/97.