1. Department of Pharmaceutics, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia
2. Department of Pharmaceutics, Faculty of Pharmacy, University of Tabuk, Tabuk, Saudi Arabia
3. Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt
4. Department of Pharmaceutics and Ind. Pharmacy, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City, Egypt