Al zubaidi, S. O. R. (2014). Measurement of key factors affecting employee extra-role behaviour in Ministry of Municipalities and Public Works in Iraq.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Al zubaidi, Salam Oleiwi Radhi. Measurement of Key Factors Affecting Employee Extra-role Behaviour in Ministry of Municipalities and Public Works in Iraq. 2014.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Al zubaidi, Salam Oleiwi Radhi. Measurement of Key Factors Affecting Employee Extra-role Behaviour in Ministry of Municipalities and Public Works in Iraq. 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.