Ammad Fahim-sup-Dr. Hajra Sadia TH-MS-MUTATIONAL ANALYSIS OF POLYMERASE GENE OF NBV IN PAKISTANI POPULATION Ammad Fahim-sup-Dr. Hajra Sadia - Islamabad ASAB (NCVI) 2012 - xiv, 80 P 30 cm Subjects--Uniform Titles: Virology and Immunology