1. Institute of Ground Water Studies, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa
2. Department of Basic Sciences and Related Studies, Mehran University of Engineering and Technology, Jamshoro, Pakistan
3. IT4 Innovations, VSB ñTechnical University of Ostrava, Ostrava-Poruba, Czech Republic
4. Department of Electrical Engineering, Sukkur IBA University, Sukkur, Pakistan