Huitema, B. E. (2011). Analysis of covariance and alternatives: Statistical methods for experiments, quasi-experiments, and single-case studies (2nd ed.). Wiley.
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Lua i Stíl Chicago (17ú heag.)
Huitema, Bradley E. Analysis of Covariance and Alternatives: Statistical Methods for Experiments, Quasi-experiments, and Single-case Studies. 2nd ed. Hoboken, N.J.: Wiley, 2011.
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Lua MLA (9ú heag.)
Huitema, Bradley E. Analysis of Covariance and Alternatives: Statistical Methods for Experiments, Quasi-experiments, and Single-case Studies. 2nd ed. Wiley, 2011.
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