APPLICATION OF QBD LIFE CYCLE APPROACH FOR STABILITY INDICATING HPLC METHOD DEVELOPMENT AND VALIDATION FOR THE ESTIMATION OF IMPURITIES IN TENOFOVIR DISOPROXIL FUMARATE AND EMTRICITABINE COMBINATION TABLETS . (2019). International Research Journal of Pharmacy, 10(4), 196-208. https://irjponline.org/index.php/irjp/article/view/352