Ummi Kalsom Mohd. Ali. (2005). Utility analysis of patients with visual impairment due to diabetic retinopathy post laser treatment. Fakulti Perubatan, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ummi Kalsom Mohd. Ali. Utility Analysis of Patients with Visual Impairment Due to Diabetic Retinopathy Post Laser Treatment. Kuala Lumpur: Fakulti Perubatan, Universiti Kebangsaan Malaysia, 2005.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ummi Kalsom Mohd. Ali. Utility Analysis of Patients with Visual Impairment Due to Diabetic Retinopathy Post Laser Treatment. Fakulti Perubatan, Universiti Kebangsaan Malaysia, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.