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Keeffe, Jill ,  WHO Programme for the Prevention of Blindness ,  University of Melbourne. Dept. of Opthalmology ,  [Low vision kit / Keeffe, Jill, Assessment of low vision in developing countries : book 1 : screening for impaired visionAssessment of low vision in developing countries : book 2 : assessment of functional vision]

Keeffe, Jill ,  WHO Programme for the Prevention of Blindness ,  University of Melbourne. Dept. of Opthalmology ,  [Low vision kit / Keeffe, Jill, Assessment of low vision in developing countries : book 1 : screening for impaired visionAssessment of low vision in developing countries : book 2 : assessment of functional vision]