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Amazon.com: Dalton Plan: Origins and Theory of Dalton Education eBook : van der Ploeg, Piet: Kindle Store
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PDF) Tracing and assessing the Students Progress Using the Teaching Method - Dalton Plan.pdf | Mariana Petrechko - Academia.edu
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Dalton Plan: Origins and Theory of Dalton Education (Progressive Education): Ploeg, Dr Piet van der: 9789490239022: Amazon.com: Books
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