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Routledge Ltd‎(2000)‎

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By Collis B.   Smith C.   in Instructional Science

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Springer Publishing Company ‎(1997)‎

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Elsevier‎(2003)‎

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By Collis B.   Peters O.   Pals N.   in Instructional Science

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Springer Publishing Company ‎(2001)‎

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