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Dyfyniad Arddull ChicagoRutherford, Andrew. Anova and Ancova: A Glm Approach. New Jersey: Wiley, 2011.
Dyfyniad MLARutherford, Andrew. Anova and Ancova: A Glm Approach. Wiley, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.