1. Guizhou Key Laboratory of Economics System Simulation, Guizhou University of Finance and Economics, Guiyang 550025, China
2. Faculty of Arts and Science, Department of Mathematics, Near East University, Nicosia 99138, Cyprus
3. Department of Computer Science and Mathematics, Lebanese American University, Beirut 1107-2020, Lebanon
4. Institute of Mathematics, Khawaja Fareed University of Engineering and Information Technology, Rahim Yar Khan 64200, Pakistan