Agustin, A. L. D., & Ningtyas, N. S. I. (2021). Titer Antibody of Newcastle Disease in Layer Chicken in Narmada District, West Lombok. Jurnal Medik Veteriner, 4(1), 98–103. https://doi.org/10.20473/jmv.vol4.iss1.2021.98-103