Elrahman, A. E. A. (2007). Physical, mechanical and electrical properties of carbon pellets prepared from treated cotton cellulose. Fakulti Sains Dan Teknologi, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Elrahman, Abubaker Elsheikh Abd. Physical, Mechanical and Electrical Properties of Carbon Pellets Prepared from Treated Cotton Cellulose. Bangi, Selangor: Fakulti Sains Dan Teknologi, Universiti Kebangsaan Malaysia, 2007.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Elrahman, Abubaker Elsheikh Abd. Physical, Mechanical and Electrical Properties of Carbon Pellets Prepared from Treated Cotton Cellulose. Fakulti Sains Dan Teknologi, Universiti Kebangsaan Malaysia, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.