Deviation of Body Weight Estimation using Lambourne Formula Against Aceh Bull’s Actual Body WeightMuhammad Hasan, Utari D.M. Lubis, Nellita Meutia, Muhammad Hambal, Fadli A. Gani and Dian MasyithaE3S Web Conf., 151 (2020) 01036DOI: https://doi.org/10.1051/e3sconf/202015101036