4Buzby, J. C., Skeos, J. Consumers want reduced exposure to pesticides on food [J]. Food Review, 1994,, 17 (2): 19-22.
5Ott, S. L. Supermarket shoppers eesticide concerns and willingness to purchase certified pesticide residue-free fresh produce [J]. Agribusiness, 1990, 6 (6) : 593 - 602.
6Cicia, G., Giudice, T. D., Searpa, R. Consumers'perception of quality in organic food [J]. British Food Journal, 2002, 140 (3/4/5): 200 - 213.