Amena, Syeda Noorain, and S. H. Rizwan. “STABILITY INDICATING ANALYTICAL METHOD DEVELOPMENT AND VALIDATION OF MEMANTINE HCl AND DONEPEZIL HCl USING RP-HPLC”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 7, no. 11, Nov. 2015, pp. 204-10, https://www.journals.innovareacademics.in/index.php/ijpps/article/view/8336.