Jwan Al-doski, Shattri B. Mansor and Helmi Zulhaidi Mohd Shafri
Geo-spatial Information Science Research Center (GIS RC), Faculty of Engineering
Universiti Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
Jwan-83@hotmail.com, shattri@gmail.com, helmi@eng.upm.edu.my