Sim, P. E. (2006). Central corneal thicknees and its association with intraocular pressure in adult malay population. Fakulti Perubatan, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sim, Pek Eng. Central Corneal Thicknees and Its Association with Intraocular Pressure in Adult Malay Population. Kuala Lumpur: Fakulti Perubatan, Universiti Kebangsaan Malaysia, 2006.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sim, Pek Eng. Central Corneal Thicknees and Its Association with Intraocular Pressure in Adult Malay Population. Fakulti Perubatan, Universiti Kebangsaan Malaysia, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.