Ali, O. H. A., A. O. . Alameen, . K. A. . Abdoun, N. M. . Elkhair, and H. . Martens. “Effect of PH on the Transport Capacity of Na+ Across the Isolated Omasal and Ruminal Epithelia of Sheep”. Journal of Veterinary Medicine and Animal Production, vol. 9, no. 1, Sept. 2021, http://onlinejournals.uofk.edu/index.php/vet/article/view/218.