Nneji, O. C. (2017). Evaluation of natural radioactivity and hazard indices in the soil collected from the residential college areas of University Malaya, Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nneji, Okereafor Casmir. Evaluation of Natural Radioactivity and Hazard Indices in the Soil Collected from the Residential College Areas of University Malaya, Malaysia. 2017.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Nneji, Okereafor Casmir. Evaluation of Natural Radioactivity and Hazard Indices in the Soil Collected from the Residential College Areas of University Malaya, Malaysia. 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.