Ramzi Hannan, N. I. R. (2019). Acoustic and non-acoustic performance of coal bottom ash as sound absorptive material for reducing railway noise level.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ramzi Hannan, Nurul Izzati Raihan. Acoustic and Non-acoustic Performance of Coal Bottom Ash as Sound Absorptive Material for Reducing Railway Noise Level. 2019.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ramzi Hannan, Nurul Izzati Raihan. Acoustic and Non-acoustic Performance of Coal Bottom Ash as Sound Absorptive Material for Reducing Railway Noise Level. 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.