Muñoz, Miguel A., Octavio Colberg, and José A. Dumas. “Chicken Manure As an Organic Fertilizer”. The Journal of Agriculture of the University of Puerto Rico 74, no. 2 (March 31, 2022): 139–144. Accessed November 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/6546.