1. Graduate School, University of Perpetual Help System DALTA Las Piñas, Manila 1740, Philippines
2. Department of Mathematics, Ayandegan Institute of Higher Education, Tonekabon 46818-53617, Iran
3. Department of Management, Ayandegan Institute of Higher Education, Tonekabon 46818-53617, Iran
4. Liberal Arts Department, American University of the Middle East, Egaila 54200, Kuwait
5. Department of Mathematics, Faculty of Arts and Science, Yildiz Technical University, Esenler, 34220 Istanbul, Turkey