“Crude Protein and Crude of Fiber Benggala [Panicum Maximum] and Elephant [Pennisetum Purpureum] Grasses on Drought Stress Condition”. Animal Production: Indonesian Journal of Animal Production, vol. 11, no. 2, May 2011, https://jap.fapet.unsoed.ac.id/index.php/JAP/article/view/1231.