Monge, Rafael, Ma Laura Arias, and Ricardo Ellner. “Contamination of Bovine Milk With Residues of Inhibitory Substances in Costa Rica”. Revista de Biología Tropical 41, no. 3B (December 1, 1993): 855–856. Accessed November 23, 2024. https://revistas.ucr.ac.cr/index.php/rbt/article/view/24127.