Blake, R., & Sekuler, R. (2005). Perception (5th ed.). Boston, MA: McGraw-Hill. (25%)
Coren, S., Ward, L.M., & Enns, J.T. (1999). Sensation and perception (5th ed.). New York, NY: Harcourt Brace. (50%)
Goldstein, E.B. (2010). Sensation and perception (8th ed.). New York, NY: Wadsworth.(25%)