1. Department of Mining Engineering, Malla Reddy Engineering College, Hyderabad, India
2. Department of Geosciences, Geotechnology and Materials Engineering for Resources, Graduate School of International Resource Sciences, Akita University, Akita, Japan
3. Department of Mining Engineering, Aksum University, Aksum, Tigray, Ethiopia
4. Department of Mining Engineering, IIT (ISM), Dhanbad, India
5. Department Mining Engineering, Federal University of Technology Akure, Akure, Nigeria