H. T. Çelik, F. A. Aslan, Y. K. Arıcı, M. E. Kahveci, and İbrahim Kiper, “A Study on the Use of Transabdominal Ultrasonography and Pregnancy Condition Score in Pregnancy in Karayaka Sheep”, Turkish JAF Sci.Tech., vol. 7, no. 11, pp. 1789–1794, Nov. 2019.