Nugraha, P., & Surjowardojo, P. (2022). Effect of Steaming Up on Old Pregnant Parent Weights, Calf Birth Weight and Colostrum Production in PFH Cattle in Sumber Rejeki Group, Princi, Dau, Malang District. Bantara Journal of Animal Science, 4(2), 52–60. https://doi.org/10.32585/bjas.v4i2.2825