DEVELOPMENT AND VALIDATION OF STABILITY INDICATING GREEN HPLC-UV METHOD FOR DETERMINATION OF CEPHALEXIN IN PHARMACEUTICAL DOSAGE FORMS AND HUMAN URINE USING MICELLAR MOBILE PHASE Journal title: International Journal of Pharmacy and Pharmaceutical Sciences Authors: Ahmed Badr Eldin, Omnia Ahmed Ismaiel, Waffa Hassan, Abdalla Shalaby Subject(s):