Setiawati, Euis Nia, Dadang Mulyadi Saleh, Vony Armelia, and Aras Prasetya Nugroho. “Accuracy of Various Doses of Sulphate Acid (H2SO4) in Early Pregnancy Detection in Friesian Holstein Dairy Cows”. International Journal of Forest, Animal and Fisheries Research 5, no. 1 (February 24, 2021). Accessed November 22, 2024. https://journal-repository.com/index.php/ijfaf/article/view/3199.