M.Lotfy, H., M. K. A. Rahman, S. A. F. Weshahy, and D. A.Ahmed,
"Smart Spectral Processing of Data for the estimation of Commonly Used Over-the-counter (OTC) Co-formulated drug; Pseudoephedrine hydrochloride and Ibuprofen",
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. Volume 223, 5 December 2019, , issue 117322, pp. 1-10, 2019.