1. School of Economics and Management, Beihua University, Jilin, China
2. Research Center for Energy Economics, School of Business Administration, Henan Polytechnic University, Jiaozuo, Henan, China
3. Vallurupalli Nageswara Rao Vignana Jyothi Institute of Engineering & Technology, Hyderabad, India
4. Department of Computer Science, VelTech University, India