Ramadan, A.A., Mandil, H. and Shikh-debes, A. 2017. DEVELOPMENT AND VALIDATION OF DIFFERENTIAL PULSE ANODIC STRIPPING VOLTAMMETRIC ANALYSIS OF SELENIUM (IV) IN BULK AND IN DOSAGE FORMULATIONS AT A GOLD ELECTRODE MULTI-MODIFIED WITH A MIXTURE OF 3, 3′-DIAMINOBENZIDINE.4HCL AND VITAMIN E. International Journal of Pharmacy and Pharmaceutical Sciences. 9, 7 (Jul. 2017), 97-102. DOI:https://doi.org/10.22159/ijpps.2017v9i7.18568.