Ginting, Litna Nurjannah, Nunung Kusnasdi, and Rachmat Pambudy. “Biaya Transaksi Eksplisit Dan Implisit Dalam Usaha Ternak Sapi Perah Di Kabupaten Bandung Barat”. Jurnal Ilmu Pertanian Indonesia 23, no. 3 (December 10, 2018): 246-258. Accessed August 13, 2020. http://journal.ipb.ac.id/index.php/JIPI/article/view/24473.