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  1. 1

    How reliable are telephone opinion polls nork Sicam, Edmund L.

    Argitaratua izan da Philippine Daily Inquirer (1999)
    Artikulua

    How reliable are telephone opinion polls
  2. 2

    Telephone survey methods sampling, selection, and supervision nork Lavrakas, Paul J.

    Argitaratua 1993
    Liburua

    Telephone survey methods sampling, selection, and supervision
  3. 3

    Survey research by telephone nork Frey, James H.

    Argitaratua 1989
    Liburua

    Survey research by telephone
  4. 4

    Telephone survey methods sampling, selection, and supervision nork Lavrakas, Paul J.

    Argitaratua 1987
    Liburua

    Telephone survey methods sampling, selection, and supervision
  5. 5

    Survey research by telephone. nork Frey, James H.

    Argitaratua 1983
    Liburua

    Survey research by telephone.
  6. 6

    Survey research by telephone nork Frey, James H.

    Argitaratua 1983
    Liburua

    Survey research by telephone
  7. 7

    Survey research by telephone nork Frey, James H.

    Argitaratua 1983
    Liburua

    Survey research by telephone
  8. 8

    Survey research by telephone nork Frey, James H.

    Argitaratua 1983
    Liburua

    Survey research by telephone
  9. 9

    Survey research by telephone nork Frey, James H.

    Argitaratua 1983
    Liburua

    Survey research by telephone
  10. 10

    Surveys by telephone a national comparison with personal interviews nork Groves, Robert M., Kahn, Robert L. 1918-

    Argitaratua 1979
    Liburua

    Surveys by telephone a national comparison with personal interviews

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