1. Department of Mathematics, College of Sciences, King Khalid University, Abha, Saudi Arabia
2. Université de Sousse, Institut Supérieur d’Informatique et des Techniques de Communication, H. Sousse, 4000, Tunisia
3. Department of Mathematics and Applied Mathematics, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
4. China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan
5. Department of Mathematics, Capital University of Science and Technology, Islamabad, Pakistan