Norhidayah Hassan. (2017). Indoor air quality assessment in selected laboratories in Chemical Engineering Department, University of Malaya (UM), Petaling Jaya, Selangor.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Norhidayah Hassan. Indoor Air Quality Assessment in Selected Laboratories in Chemical Engineering Department, University of Malaya (UM), Petaling Jaya, Selangor. 2017.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Norhidayah Hassan. Indoor Air Quality Assessment in Selected Laboratories in Chemical Engineering Department, University of Malaya (UM), Petaling Jaya, Selangor. 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.