1. School of Sciences, Xi’an Technological University, P.R. China
2. Department of Engineering, Faculty of Advanced Technology and Multidiscipline, Universitas Airlangga, Surabaya, Indonesia
3. Department of Physics, Faculty of Science and Technology, Universitas Airlangga, Surabaya, Indonesia
4. Department of Mathematics, Faculty of Science, University of Gujrat, Mandi Bahauddin, Pakistan
5. Department of Mathematics and Statistics, Chaudhary Charan Singh Haryana Agricultural University, Hisar, India