Ibrahim Zubil Ab. Rahman. (2011). Prevalence rate of hearing impairment and hypertension among airport workers at KLIA and factors associated with it. Faculty of Medicine, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ibrahim Zubil Ab. Rahman. Prevalence Rate of Hearing Impairment and Hypertension Among Airport Workers at KLIA and Factors Associated with It. Kuala Lumpur: Faculty of Medicine, Universiti Kebangsaan Malaysia, 2011.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ibrahim Zubil Ab. Rahman. Prevalence Rate of Hearing Impairment and Hypertension Among Airport Workers at KLIA and Factors Associated with It. Faculty of Medicine, Universiti Kebangsaan Malaysia, 2011.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.