B. Valli Purnima, G. Ramu and D. Ramachandran (2023) “First and Second Order Derivative Spectrophotometric Methods for Simultaneous Determination of Emtricitabine and Tenofovir Disoproxil Fumarate Tablets”, Progress in Chemical Science Research Vol. 9, pp. 109–129. doi: 10.9734/bpi/pcsr/v9/19277D.