Rashmi, S., Sahadev, A., Swamy, M. N., Ravindranath, B. M., Santhosh, C. R., Kumar, S. N., & Nagaraja, B. N. (2020). Comparative Evaluation of Early Pregnancy Diagnostic Methods in Dairy Cows. International Journal of Livestock Research, 10(5), 71–77. https://doi.org/10.5455/ijlr.20200109120845