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دليل المستخدم
Samhon، A. S. A. M.، و Abdalla، A. Y. (2016). Common Punctuation Errors Made by Secondary Schools Students in English: A Case Study at Secondary Schools, Nyala Locality. مجلة العلوم الإنسانية، مج17, ع4 ، 73 - 87. مسترجع من http://search.mandumah.com/Record/782031
Samhon، Al Sadig Abaker Mohamed، و Abdalla Yassin Abdalla. "Common Punctuation Errors Made By Secondary Schools Students in English: A Case Study At Secondary Schools, Nyala Locality." مجلة العلوم الإنسانية مج17, ع4 (2016): 73 - 87. مسترجع من http://search.mandumah.com/Record/782031