Suprayogi, Agik, et al. “Nilai Fisiologis Sapi Perah Kering Kandang Di Pangalengan: Hematologi, Denyut Jantung, Frekuensi Respirasi, Dan Suhu Tubuh”. Jurnal Ilmu Pertanian Indonesia, vol. 24, no. 4, Oct. 2019, pp. 375-81, https://doi.org/10.18343/jipi.24.4.375.