1. Department of Statistics, Dokuz Eylul University, Izmir, Turkey
2. Department of Mathematics, University of Trento, Trento, Italy
3. Faculty of Pharmacy, Medical University, Sofia, Bulgaria
4. Department of Pharmaceutical Sciences, Faculty of Pharmacy, Medical University – Plovdiv, Plovdiv, Bulgaria
5. Department of Chemistry, Hashemite University, Az-Zarqa, Jordan