Mohammed Usman, A. (2019). Development of carbon footprint quantification and reduction (cafquar) assessment tool for selected non-residential buildings.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Mohammed Usman, Abdullahi. Development of Carbon Footprint Quantification and Reduction (cafquar) Assessment Tool for Selected Non-residential Buildings. 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Mohammed Usman, Abdullahi. Development of Carbon Footprint Quantification and Reduction (cafquar) Assessment Tool for Selected Non-residential Buildings. 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.