Результаты поиска - "Internet surveys."

Conducting online surveys по Sue, Valerie M.

Conducting online surveys по Sue, Valerie M.

Doing surveys online по Toepoel, Vera

Doing surveys online по Toepoel, Vera

The science of web surveys по Tourangeau, Roger, Conrad, Frederick G. 1955- (Frederick George), Couper, Mick P.

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Web survey methodology по Callegaro, Mario, Lozar Manfreda, Katja, Vehovar, Vasja

Web survey methodology по Callegaro, Mario, Lozar Manfreda, Katja, Vehovar, Vasja