Al Bratty, M.; Saleh, S. F.; Alhazmi, H. A.; Javed, S. A.; Ahmed, A. M.; Ahsan, W. A Validated HPTLC Densitometric Method for Quantitative Determination of Zanamivir in Bulk and Pharmaceutical Formulation. Eur. J. Chem. 2018, 9, 115-120.