मूल लेख
Isolation, characterization and synthesis of novel impurity in antiviral drug: Valacyclovir hydrochloride
Keshava Navin Kumar Reddy, VVNKV Prasadaraju, S.Ashok, Mayur D.Khunt, Bojju Ramachandra Reddy, Vurimidi Himabindu, Ghanta Mahesh Reddy