Analisis Filogenetik Gen Hemaglutinin dan Neuraminidase Avian Influenza H9N2 Asal Ayam Petelur di Jawa Timur (PHYLOGENETIC ANALYSIS OF HAEMMAGLUTININ AND NEURAMINIDASE GENES OF AVIAN INFLUENZA H9N2 FROM LAYER INI EAST JAVA) - Rachmawati, Prestalia Dwi (Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association, 2020)