A. H. AMIN, R. EL SHEIKH, A. O. YOUSSEF, G. M. ABDEL FATTAH, and A. A. GOUDA, “VALIDATED SPECTROPHOTOMETRIC METHODS BASED ON CHARGE TRANSFER COMPLEXATION REACTION FOR THE DETERMINATION OF VALACYCLOVIR HYDROCHLORIDE AS ANTIVIRAL DRUG IN PHARMACEUTICAL FORMULATIONS”, Int J App Pharm, vol. 14, no. 3, pp. 117–124, May 2022.