Mandala, Aletha Yuliana, Suwiti, Ni Ketut, AND Suardana, I Wayan. " The Growth Hormone Level of Bali Cattle’s Post Treatment with Ethinil Esthradiol and Progesteron Hormones in Combination with Mineral" Journal of Veterinary and Animal Sciences [Online], Volume 2 Number 1 (31 January 2019)