Nejres, Aws Maseer, and Moath Abdallah Najem. ‚ÄúSimultaneous Determination of Amlodipine and Lisinopril Dihydrate Using Fourth Derivative Spectroscopy‚ÄĚ. European Journal of Chemistry, vol. 14, no. 1, Mar. 2023, pp. 65-71, doi:10.5155/eurjchem.14.1.65-71.2367.