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Dyfyniad Arddull ChicagoJonassen, David H., Jane Howland, and Joi Moore. Learning to Solve Problems with Technology: A Constructivist Perspective. 2 edición. Upper Saddle River: Merril Prentice Hall, 2003.
Dyfyniad MLAJonassen, David H., et al. Learning to Solve Problems with Technology: A Constructivist Perspective. 2 edición. Merril Prentice Hall, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.