Nur Hafiizhoh Abd Hamid. (2013). Comparison of sniffing position and simple head extension for glottic visualization during direct laryngoscopy in elective surgical patients. Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nur Hafiizhoh Abd Hamid. Comparison of Sniffing Position and Simple Head Extension for Glottic Visualization During Direct Laryngoscopy in Elective Surgical Patients. Kuala Lumpur: Universiti Kebangsaan Malaysia, 2013.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Nur Hafiizhoh Abd Hamid. Comparison of Sniffing Position and Simple Head Extension for Glottic Visualization During Direct Laryngoscopy in Elective Surgical Patients. Universiti Kebangsaan Malaysia, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.