Sulaiman، M. S.، و Al-Abed Al-Haq،Fawwaz. (2012). The Effect of Portfolio Assessment on the English Writing Performance of Jordanian First Secondary School Students and their Attitudes towards Writing (رسالة دكتوراه غير منشورة). جامعة عمان العربية، عمان. مسترجع من http://search.mandumah.com/Record/637296
Sulaiman، Mohammad Saleem، و Al-Abed Al-Haq،Fawwaz. "The Effect of Portfolio Assessment On the English Writing Performance of Jordanian First Secondary School Students and Their Attitudes Towards Writing" رسالة دكتوراه. جامعة عمان العربية، عمان، 2012. مسترجع من http://search.mandumah.com/Record/637296