Pinzón, B., and R. Montenegro. “MEAT PRODUCTION EMPLOYING Digitaria Swazilandensis FERTILIZED OR IN ASSOCIATION WITH TWO ECOTYPES OF Arachis Pintoi. 1997-1999.”. Ciencia Agropecuaria, no. 11, Mar. 2002, pp. 107-2, http://200.46.165.126/index.php/ciencia-agropecuaria/article/view/375.