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Schunk. (2012). Learning theories an educational perspective . Yogyakarta: Pustaka Pelajar.

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Schunk. Learning theories an educational perspective. Yogyakarta: Pustaka Pelajar, 2012. Text.

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Schunk. Learning theories an educational perspective. Yogyakarta: Pustaka Pelajar, 2012. Text.

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Schunk. Learning theories an educational perspective. Yogyakarta: Pustaka Pelajar, 2012. Print.