Abdul Wahab, A. (2001). The Use of a Geographical Information System (GIS) as a Spatial Decision Support System: Processing Planning Applications in Hilly Areas.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abdul Wahab, Abbas. The Use of a Geographical Information System (GIS) as a Spatial Decision Support System: Processing Planning Applications in Hilly Areas. 2001.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abdul Wahab, Abbas. The Use of a Geographical Information System (GIS) as a Spatial Decision Support System: Processing Planning Applications in Hilly Areas. 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.