1. Department of Mathematics Kallam Haranadhareddy Institute of Technology Guntur Andhra Pradesh India
2. Department of Mathematics Guru Ghasidas Vishwavidyalaya Central University Bilaspur Chhattisgarh India
3. Department of Mathematics Seshadri Rao Gudlavalleru Engineering College Gudlavalleru Andhra Pradesh India
4. Department of IT, Maths Section, University of Technology and Applied sciences UTAS—Shinas Muscat Oman