Dangos 1 - 10 canlyniadau o 10 ar gyfer chwilio '', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1

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

    Cyhoeddwyd yn Philippine Daily Inquirer (1999)
    Erthygl

    How reliable are telephone opinion polls
  2. 2

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

    Cyhoeddwyd 1993
    Llyfr

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

    Survey research by telephone gan Frey, James H.

    Cyhoeddwyd 1989
    Llyfr

    Survey research by telephone
  4. 4

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

    Cyhoeddwyd 1987
    Llyfr

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

    Survey research by telephone. gan Frey, James H.

    Cyhoeddwyd 1983
    Llyfr

    Survey research by telephone.
  6. 6

    Survey research by telephone gan Frey, James H.

    Cyhoeddwyd 1983
    Llyfr

    Survey research by telephone
  7. 7

    Survey research by telephone gan Frey, James H.

    Cyhoeddwyd 1983
    Llyfr

    Survey research by telephone
  8. 8

    Survey research by telephone gan Frey, James H.

    Cyhoeddwyd 1983
    Llyfr

    Survey research by telephone
  9. 9

    Survey research by telephone gan Frey, James H.

    Cyhoeddwyd 1983
    Llyfr

    Survey research by telephone
  10. 10

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

    Cyhoeddwyd 1979
    Llyfr

    Surveys by telephone a national comparison with personal interviews

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