1. Department of Mathematics, University of Malakand, Chakdara Dir(L) 18000, Khyber Pakhtunkhwa, Pakistan; sarwar@uom.edu.pk, muhmmadfawad123@gmail.com, mrashidghani26@gmail.com
2. Department of Mathematics and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia; nmlaiki@psu.edu.sa
3. Faculty of Electrical Engineering, University of Banja Luka, Patre 5, Banja Luka 78000, Bosnia and Herzegovina; zoran.mitrovic@etf.unibl.org
4. College of Science, Northwest A&F University, Yangling 712100, China; zhangqq2019@nwafu.edu.cn