“Applying of B-Mode Ultrasound for Determining Pregnancy by Means of Measurement of Placentomes Diameter and Fetal Bi-Parietal Diameter in Dairy Cows”. The Iraqi Journal of Veterinary Medicine, vol. 42, no. 2, Jan. 2019, pp. 90-96, https://doi.org/10.30539/iraqijvm.v42i2.304.