1. Department of Mathematics, Saveetha School of Engineering, SIMATS, Chennai, Tamil Nadu, India
2. Department of Mathematics and Social Sciences, Sukkur IBA University, Sukkur, 65200, Sindh, Pakistan
3. Academic Consultant, Department of Applied Mathematics, Sri Padmavathi Mahila Visva Vidyalayam, Tirupati, India
4. Department of Mathematics, Capital University of Science and Technology, 44000 Islamabad, Pakistan
5. Department of Physics, Mizan Tepi University, PO Box 121, Tepi, Ethiopia