SALEM, A. Z. M., H. AMMAR, A. E. KHOLIF, M. M. Y. ELGHANDOUR, and L. B. ORTIZ. “Effect of Glucoamylase Enzyme Extract on in Vitro Gas Production and Degradability of Two Diets With 25% of Corn or Sorghum Grains”. The Indian Journal of Animal Sciences, vol. 85, no. 2, Feb. 2015, https://epubs.icar.org.in/index.php/IJAnS/article/view/46613.