1. Department of Mathematics, Islamic Azad University, Urmia Branch, P.O. BOX 969, Urmia, Iran
2. Department of Physics, Islamic Azad University, Urmia Branch, P.O. BOX 969, Urmia, Iran
3. Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, P.O. Box 80204, Jeddah 21589, Saudi Arabia
4. Department of Mathematics and Computer Science, Çankaya University, 06530 Ankara, Turkey
5. Institute of Space Sciences, P.O. Box MG-23, 76900 Magurele-Bucharest, Romania