1. Department of MathematicsCankaya University06530, BalgatAnkaraTurkey
2. Institute of Space Sciences, Magurele-BucharestMăgureleRomania
3. Stochastic Analysis and Optimization Research Group, Department of MathematicsAir UniversityPAF Complex E-9IslamabadPakistan
4. Faculty of EngineeringUniversity of Central PunjabLahorePakistan
5. Department of MathematicsUniversity of LahoreLahorePakistan