Siswanto FAJ, Rubiyatno, Dwiatmaka Y. IbM Peternak Sapi Perah dan Pengolahan Susu di Pakem Sleman. Abdimas Altruis. 2018;1(1):1-7. Accessed October 13, 2025. http://ejournal.usd.ac.id/index.php/ABDIMAS/article/view/3