1. Appleton, J., 1975. The Experience of Landscape. Wiley, London.
2. Aspects of landscape or nature quality;Arler;Landscape Ecol.,2000
3. Bell, S., 1995. Visual Landscape Design Training Manual. Ministry of Forests, Canada Recreation Branch Publication.
4. Bell, S., 1999. Landscape: Pattern, Perception and Process. E & FN Spon, London.
5. Prediction of scenic beauty using mapped data and geographic information system;Bishop;Landsc. Urban Plan.,1994