1. Ideas for point-of-purchase nutrition education;Fjeld;Journal of Nutrition Education,1981
2. Some internal psychological factors influencing consumer choice;McGuire;Journal of Consumer Research,1976
3. Experimental and quasi-experimental design for research;Campbell,1963
4. Experimental and quasi-experimental design for research;Campbell,1963
5. Food consumption of households in the Northeast, seasons, and year 1965–66: Household Food Consumption Survey 1965–66,1972