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Electronic commerce : markets and users
Dickey, Michael H., (2000)
Seminar on market modelling
(1975)
Consumer Behavior : Research on Consumer Reactions
Clark, Lincoln H., (1958)
Applied sampling
Sudman, Seymour, (1976)
On the accuracy of recording of consumer panels : 2
Sudman, Seymour, (1964)
Improving the quality of shopping center sampling
Sudman, Seymour, (2007)