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دليل المستخدم
بن شريك، عمر. (2018). The Effectiveness of Educational Campaign for Improving Pedestrian Safety Behaviors: Study among School Students of Two Secondary Schools in Djelfa. مجلة العلوم النفسية والتربوية، مج4, ع4 ، 450 - 458. مسترجع من http://search.mandumah.com/Record/1144302
بن شريك، عمر. "The Effectiveness of Educational Campaign for Improving Pedestrian Safety Behaviors: Study Among School Students of Two Secondary Schools in Djelfa." مجلة العلوم النفسية والتربوية مج4, ع4 (2018): 450 - 458. مسترجع من http://search.mandumah.com/Record/1144302