Bilaketaren emaitzak - Bradburn, Norman; Sudman, Seymour; Wansink, Brian

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    Asking Questions: The Definitive Guide To Questionnaire Design -- For Market Research, Political Polls, And Social and H

    Asking Questions: The Definitive Guide To Questionnaire Design -- For Market Research, Political Polls, And Social and H nork Bradburn, Norman; Sudman, Seymour; Wansink, Brian

    Argitaratua 2004
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