1. Geology Department Faculty of Science, Helwan University, Helwan, Cairo, Egypt
2. Universiti Sains Malaysia, School of Physics, Minden, Pulau Penang, Malaysia
3. School of Science and Technology Universiti Kembansaag
4. Nigerian Army University, Borno, Nigeria
5. Geomagnetic and geoelectric department, National Research Institute of Astronomy and Geophysics NRIAG, Egypt
6. School of Geosciences, China University of Petroleum, Qingdao, Shandong, 266580, China