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Dyfyniad Arddull ChicagoLyons, Gordon, Margot Ford, and June Slee. Classroom Management: Creating Positive Learning Environments. 4th edition. South Melbourne, Victoria, Australia: Cengage Learning Australia, 2014.
Dyfyniad MLALyons, Gordon, et al. Classroom Management: Creating Positive Learning Environments. 4th edition. Cengage Learning Australia, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.