1. School of Pharmacy, Faculty of Medical Sciences, Jimma University, P.O.Box: 378, Jimma, Ethiopia
2. Department of Medicinal Chemistry, B. V. Patel Pharmaceutical Education and Research Development Centre, Ahmedabad Gujarat, India
3. Shree S. K. Patel College of Pharmaceutical Education and Research, Ganpat Vidayanagar, Mehsana Gujarat, India
4. Department of Chemistry, Faculty of Education, Jimma University, P.O. Box No: 378, Jimma, Ethiopia