Analysis of Biosecurity Application in Broiler Chicken Farms in North Sumatra. Indonesian Journal of Agricultural Research, [S. l.], v. 6, n. 1, p. 51–56, 2023. DOI: 10.32734/injar.v6i01.8762. Disponível em: https://idjpcr.usu.ac.id/InJAR/article/view/8762. Acesso em: 4 feb. 2026.