Umur, H., H. Hanoğlu Oral, H. Ekşi Karaağaç, S. Koçer, H. Uçurum, and E. Altınçekiç. “Determination of Urea Content in Dairy Cattle Feed by High Performance Liquid Chromatography via Refractive Index Detector: Method Optimization, Validation and Comparison With Spectro-Colorimetric Method”. Journal of the Hellenic Veterinary Medical Society, vol. 75, no. 2, July 2024, pp. 7501-12, doi:10.12681/jhvms.35131.