C. M. H. Nugroho, O. S. M. Silaen, R. S. Kurnia, R. D. Soejoedono, O. N. Poetri, and A. Soebandrio, “Isolation and molecular characterization of the hemagglutinin gene of H9N2 avian influenza viruses from poultry in Java, Indonesia”, J. Adv. Vet. Anim. Res, vol. 8, no. 3, pp. 423–434, Sep. 2021.