“The Effect of the Use of Cassava Tuber (Manihot Esculenta) and Indigofera Zollingeriana Leaf Flour Combination As a Source of Energy Supplemented With Citric Acid in Ration on Broiler Small Intestine Characteristics and Productivity”. 2022. Journal of Advanced Veterinary and Animal Research 9 (3): 471-80. https://www.banglajol.info/index.php/JAVAR/article/view/80292.