Varughese Koshy. (2004). Risk factors associated with anaemia of prematurity in very low birth weight (VLBW) infants. Faculty of Medicine, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Varughese Koshy. Risk Factors Associated with Anaemia of Prematurity in Very Low Birth Weight (VLBW) Infants. Kuala Lumpur: Faculty of Medicine, Universiti Kebangsaan Malaysia, 2004.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Varughese Koshy. Risk Factors Associated with Anaemia of Prematurity in Very Low Birth Weight (VLBW) Infants. Faculty of Medicine, Universiti Kebangsaan Malaysia, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.