1. Benhar, E., & Samuel, D. Visual illusions in the baboon (Papio anubis). Animal Learning & Behavior, 1982, 10, 115–118.
2. Davis, R. T. Monkeys as perceivers. In L. A. Rosenblum (Ed.), Primate behavior: Developments in field and laboratory research (Vol. 3). New York: Academic Press, 1974.
3. DeValois, R. L., & Jacobs, G. H. Vision. In A. M. Schrier & F. Stollnitz (Eds.), Behavior of nonhuman primates: Modern research trends (Vol. 3). New York: Academic Press, 1971.
4. Dominguez, K. E. A study of visual illusions in the monkey. Journal of Genetic Psychology, 1954, 85, 105–127.
5. Gregory, R. L. Eye and brain. London: World University Library, 1972.