PEREIRA DA FONSECA, M. DA C.; AZEVEDO PEREIRA DA SILVA, M. A.; SALAY, E. CONSUMER ATTITUDES WITH RESPECT TO THE BUYING OF HORTICULTURAL PRODUCTS IN SUPERMARKETS AND OPEN MARKETS IN THE CITY OF CAMPINAS - SP. Science & Technology Journals, v. 16, n. 1, p. 87–113, 1 Jan.1999.