Ramesh Sahathavan. (2004). Parkinson's disease and its effect on the visual pathways: A study on the influence of disease severity on latency of visual evoked potentials and colour discrimination. Faculty of Medicine, Universiti Kebangsaan Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ramesh Sahathavan. Parkinson's Disease and Its Effect on the Visual Pathways: A Study on the Influence of Disease Severity on Latency of Visual Evoked Potentials and Colour Discrimination. Kuala Lumpur: Faculty of Medicine, Universiti Kebangsaan Malaysia, 2004.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ramesh Sahathavan. Parkinson's Disease and Its Effect on the Visual Pathways: A Study on the Influence of Disease Severity on Latency of Visual Evoked Potentials and Colour Discrimination. Faculty of Medicine, Universiti Kebangsaan Malaysia, 2004.