Carmines, E. G., & Zeller, R. A. (1979). Reliability and validity assessment. Sage Publications.
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Dyfyniad Arddull Chicago
Carmines, Edward G., and Richard A. Zeller. Reliability and Validity Assessment. Beverly Hills, Calif.: Sage Publications, 1979.
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Dyfyniad MLA
Carmines, Edward G., and Richard A. Zeller. Reliability and Validity Assessment. Sage Publications, 1979.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.