UtamiY. M., WidyariniS., and WibowoM. H., “Comparative Biological Pathotyping of Newcastle Disease Virus Sub-genotypes VIIg, VIIh, and VIIi in Specific Pathogen Free (SPF) Chickens”, Trop. Anim. Sci. J., vol. 46, no. 2, pp. 172-179, May 2023.