1. Sensation and Judgement;Baird,1997
2. Fundamentals of Scaling and Psychophysics;Baird,1978
3. Brown, W., 1910. The Judgement of Difference. Publications in Psychology, Vol. 1. The University of California, pp. 1–71.
4. Sensation and Perception;Coren,1979
5. Virtual Reality;Durlach,1995