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Dyfyniad Arddull ChicagoBerry, William D. Multiple Regression in Practice. Newbury Park, California: Sage Publications, Inc, 1985.
Dyfyniad MLABerry, William D. Multiple Regression in Practice. Sage Publications, Inc, 1985.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.