1. Department of Surveying and Geoinformatics, School of Environmental Technology, Federal University of Technology Minna, Minna, Nigeria
2. Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
3. Department of Geomatics Engineering, Faculty of Engineering and Architecture, Sinop University, Sinop, Turkey
4. Department of Geomorphology, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran