1. Investigation into pictorial perception with special reference to Central Africa;Deregowski,1968
2. Preference for chain-type drawings in Zambian domestic servants and primary schoolchildren;Deregowski;Psychologia Africana,1969
3. Pictures, perspectives and perception;Gibson;Daedalus,1960
4. The psychophysics of form: reversible - perspective drawings of spatial objects;Hochberg;Amer. J. Psychol.,1960
5. Pictorial perception and educational adaptation in Africa;Hudson;Psychologia Africana,1962