T. A. Elkhazein, T. A. . Abdeljabar, A. N. . Abdelrahman, M. E. Adam, and S. W. Shantier, “Development and validation of UV-spectrophotometric method for the determination of folic acid in bulk and tablet dosage forms”, J. Appl. Pharm. Res., vol. 10, no. 2, pp. 19-23, Jun. 2022.