Causes of visual impairment among students attending schools for the blind in Kedah, Malaysia - Hamzah Umar (Kuala Lumpur : Universiti Kebangsaan Malaysia, 2002)
Tesis (Degree of Master of Surgery - Ophthalmology) - Universiti Kebangsaan Malaysia, 2002
References : p. 39-40
Keywords: Visual Impaired Persons; Blindness -- epidemiology; INDAMET