Idris, I. T. (2017). The effects of systematic risks on bank asset quality: Evidence from organisation of the petroleum exporting countries (OPEC).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Idris, Isma'il Tijjani. The Effects of Systematic Risks on Bank Asset Quality: Evidence from Organisation of the Petroleum Exporting Countries (OPEC). 2017.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Idris, Isma'il Tijjani. The Effects of Systematic Risks on Bank Asset Quality: Evidence from Organisation of the Petroleum Exporting Countries (OPEC). 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.