1. Department of Civil Engineering, Geospatial Information Science Research Center (GISRC); Universiti Putra Malaysia; UPM, 43400 Serdang Selangor Malaysia
2. School of Systems, Management and Leadership, Faculty of Engineering and Information Technology; University of Technology Sydney; Ultimo New South Wales Australia
3. Department of Energy and Mineral Resources Engineering, Choongmu-gwan; Sejong University; Seoul Korea