Widyas, N., Nugroho, T., Ratriyanto, A., and Prastowo, S. “Crossbreeding strategy evaluation between Boer and Indonesian goat based on pre-weaning traits”. International Journal of Agricultural Technology, vol. 17, no. 6, Nov. 2021, pp. 2461-72, https://li04.tci-thaijo.org/index.php/IJAT/article/view/6413.