Nor Shahrina Mohd. Zawawi. (2010). Measuring voluntary cough and its relationship to the perception of voice. University of Canterbury.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nor Shahrina Mohd. Zawawi. Measuring Voluntary Cough and Its Relationship to the Perception of Voice. New Zealand: University of Canterbury, 2010.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Nor Shahrina Mohd. Zawawi. Measuring Voluntary Cough and Its Relationship to the Perception of Voice. University of Canterbury, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.