1. Department of Mathematics and Statistics, Institute of Southern Punjab, Multan, Pakistan
2. Department of Mathematics, Art and Science faculty, Siirt University, 56100 Siirt, Turkey
3. Near East University, Mathematics Research Center, Department of Mathematics, Near East Boulevard, PC 99138, Nicosia/Mersin, Turkey
4. Department of Mathematics, College of Science, P. O. Box 11099, Taif University, Taif 21944, Saudi Arabia
5. Department of Mathematics, Science Faculty Firat University, Elazig, Turkey
6. Department of Medical Research China Medical University, Taichung, Taiwan, China