Weber, O. L. S., and H. P. Haag. “ Mineral Nutrition of Panicun Maximum Cv. Makueni III: Digestibility Coeficient of the Dry Matter ”. Anais Da Escola Superior De Agricultura Luiz De Queiroz, vol. 41, no. 2, Jan. 1984, pp. 821-30, https://doi.org/10.1590/S0071-12761984000200016.