Satyastika, F. Z. ., D. . Samsudewa, and R. Hartanto. “Meta Analysis: The Impact of Utilizing Rumen Undegradable Protein in Feed on Reproductive and Production Performance of Dairy Cow ”. Journal of Advanced Veterinary Research, vol. 15, no. 5, Oct. 2025, pp. 685-9, https://advetresearch.com/index.php/AVR/article/view/2371.