Bulao, Maria Fe. “Growth and Development of the Lymphoid Organs As Affected by Inorganic and Organic Zinc in Broilers Chickens”. JPAIR Multidisciplinary Research 20, no. 1 (March 4, 2015): 11–34. Accessed April 2, 2025. https://philair.ph/index.php/jpair/article/view/317.