H. U and P. Akm, “DEVELOPMENT AND VALIDATION OF STABILITY INDICATING SIMULTANEOUS UVSPECTROPHOTOMETRIC METHOD FOR DETERMINATION OF EMTRICITABINE, TENOFOVIR DISOPROXIL FUMARATE, COBICISTAT, AND ELVITEGRAVIR IN PURE AND PHARMACEUTICAL DOSAGE FORM”, Asian J Pharm Clin Res, vol. 11, no. 4, pp. 177–184, Apr. 2018.