1. BEHAVIORAL AND PERCEPTION GEOGRAPHY: A CRITICAL APPRAISAL∗
2. The Carioca's view of the world;Cole J.P.;Ideas in Geography,1970
3. Denzin N.K.(1970).The Research Act: A Theoretical Introduction to Sociological Methods Chicago .
4. Geographic space perception: past approaches and future prospects;Downs R.M.;Progress in Geography,1970
5. Getis A.et al.(1985) Human Geography: Culture and Environment New York .