Esteves, S. N., Penteado, M. del V. C. and Ortolani, E. L. (1995) “Feeding calves with hydrosoluble soybean extract. I. Performance and digestibility”, Brazilian Journal of Veterinary Research and Animal Science, 32(2), pp. 96-100. doi: 10.11606/issn.1678-4456.bjvras.1994.52094.