Wulandari, Innah, Jola Rahmahani, Indah Rahmawati, Nurvita Putih, Aisyah Azahro, Kusnoto Kusnoto, Rahayu Ernawati, and Fedik Abdul Rantam. 2021. “Molecular Characterization of Hemagglutinin-Neuraminidase Protein Virus Newcastle Disease (ND) in Surabaya During 2003 and 2016”. Jurnal Medik Veteriner 4 (2):231-42. https://doi.org/10.20473/jmv.vol4.iss2.2021.231-242.