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دليل المستخدم
Lombard، R. (2009). A New Suit for Social Studies: Working with Per - Service Teachers and unit Building - using the Understanding by Design Model as Guide. مجلة الدراسات الاجتماعية، ع 28 ، 9 - 42. مسترجع من http://search.mandumah.com/Record/355848
Lombard، Ronald. "A New Suit for Social Studies: Working With Per - Service Teachers and Unit Building - Using the Understanding By Design Model As Guide." مجلة الدراسات الاجتماعية ع 28 (2009): 9 - 42. مسترجع من http://search.mandumah.com/Record/355848