Putri Nahrisah. (2009). Comparison cost of elective lower segment caesarean section between top-down and activity based costing at University Kebangsaan Malaysia Medical Centre (UKMMC). Medical Faculty, University Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Putri Nahrisah. Comparison Cost of Elective Lower Segment Caesarean Section Between Top-down and Activity Based Costing at University Kebangsaan Malaysia Medical Centre (UKMMC). Kuala Lumpur: Medical Faculty, University Kebangsaan Malaysia, 2009.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Putri Nahrisah. Comparison Cost of Elective Lower Segment Caesarean Section Between Top-down and Activity Based Costing at University Kebangsaan Malaysia Medical Centre (UKMMC). Medical Faculty, University Kebangsaan Malaysia, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.