S, P. S., A. A. A, A. K. K, A. P R, and A. P. R. “Q-ABSORBANCE RATIO AND VIERODT’S SPECTROPHOTOMETRIC METHOD FOR THE SIMULTANEOUS ESTIMATION OF FAMOTIDINE AND OMEPRAZOLE”. International Journal of Pharmaceutics and Drug Analysis, vol. 11, no. 1, Apr. 2023, pp. 9-16, doi:10.47957/ijpda.v11i1.529.