Vitti, D. M. S. S.; Abdalla, A. L.; Meirelles, C. ferreira; Filho, J. C. da S.; Louvandini, H. True Phosphorus Absorption from Different Sources for Sheep, Using Radiophosphorus (P-32). PAB 1992, 27 (10), 1405-1408. https://doi.org/10.1590/S1678-3921.pab1992.v27.3784.