Khanongnuch, Chartchai, Chatchai Sa-nguansook, and Saisamorn Lumyong. “Nutritive Quality of β-Mannanase Treated Copra Meal in Broiler Diets and Effectiveness on Some Fecal Bacteria”. International Journal of Poultry Science 5, no. 11 (October 15, 2006): 1087–1091. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/678.