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  1. 1

    Pitfalls in human research ten pivotal points nork Barber, Theodore Xenophon 1927-

    Argitaratua 1976
    Liburua

    Pitfalls in human research ten pivotal points
  2. 2

    Experimenter effects in behavioral research nork Rosenthal, Robert 1933-

    Argitaratua 1966
    Liburua

    Experimenter effects in behavioral research

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