Pereka, A. “Hepatic Blood Flow Rate, Plasma Triglycerides and Free Fatty Acids Flow In Pregnant Sheep During Fasted and Feeding State”. Tanzania Veterinary Journal, vol. 11, no. 4, Aug. 1992, pp. 114-25, https://tvj2.sua.ac.tz/vet2/index.php/TVJ/article/view/384.