1. Department of Mathematics, College of Sciences and Arts, ArRass, Qassim University, Saudi Arabia
2. Department of Mathematics, University of Swabi, Swabi 23561, Pakistan
3. School of Mathematical Sciences, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
4. Mathematics Department, College of Science, King Khalid University, Abha, Saudi Arabia
5. Department of Pathogenic Microbiology Immunology, School of Basic Medical Sciences, Xiaan Jiaotong University, Xiaan 710061, China