Proverbio, D., A. Belloli, G. Greppi, G. Vacirca, and V. Grieco. “Determination of Enzyme Activity, Proteinuria and Creatininuria in Bovine Urine”. The Bovine Practitioner, vol. 1993, no. 27, Aug. 2019, pp. 108-10, doi:10.21423/bovine-vol1993no27p108-110.