Rodríguez, Abner A., Raquel B. Fuentes, and Héctor L. Díaz. “ANAEROBIC DIGESTION AND DIRECT ACIDIFICATION OF POULTRY PROCESSING SLUDGE FOR ANIMAL DIETS”. The Journal of Agriculture of the University of Puerto Rico 87, no. 1-2 (April 1, 2003): 81–86. Accessed August 16, 2022. https://revistas.upr.edu/index.php/jaupr/article/view/1135.