1. Department of Mathematics, Kallam Haranadhareddy Institute of Technology, Guntur, India
2. Mathematics and Computing Skills Preparatory Studies Centre, University of Technology and Applied Science, UTAS-Shinas, Muscat, Oman
3. Department of Mathematics, Seshadri Rao Gudlavalleru Engineering College, Gudlavalleru, India
4. Department of Mathematics, GITAM University, Hyderabad, India