Sayuti, Arman, 		Khairiah, Khairiah, 		Siregar, Tongku Nizwan, 		Melia, Juli, 		Syafruddin, Syafruddin, 		Rahmi, Erdiansyah, 		Herrialfian, Herrialfian, 		Abrar, Mahdi, 		Panjaitan, Budianto, AND 		Daud, Razali.
" Determination of Gestational Age and Observation of Kacang Goat Fetal Development during 60 Days of Pregnancy by Using Transcutaneous Ultrasonography" <em>Jurnal Veteriner</em> [Online], Volume 20 Number 4 (31 December 2019)