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2.
Dickinson, Christine. Low Vision: Principles and Practice. (Butterworth-Heinemann, Oxford, 1998).
3.
Obstfeld, Henri. Spectacle Frames and Their Dispensing. (W.B. Saunders, London, 1997).
4.
Brooks, Clifford W. & Borish, Irvin M. System for Ophthalmic Dispensing. (Butterworth Heinemann Elsevier, St. Louis, Mo, 2007).
5.
Janney, G. D. & Tunnacliffe, A. H. Worked Problems in Ophthalmic Lenses. (ABDO College of Education (Association of British Dispensing Opticians), Canterbury, 2005).
6.
Jalie, M. Ophthalmic Lenses and Dispensing. (Butterworth-Heinemann, Oxford, 2007).
7.
Jalie, M. & Association of British Dispensing Opticians. The Principles of Ophthalmic Lenses. (Association of British Dispensing Opticians, London, 1984).
8.
Wakefield, Kelvin G. & Bennett, Arthur G. Bennett’s Ophthalmic Prescription Work. (Butterworth-Heinemann, Oxford, 2000).
9.
British Standards Institution. Ophthalmic Lens Materials. vol. BS 3062 : 1985 (BSI, London, 1985).
10.
British Standards Institution. Ophthalmic Optics: Mounted Spectacle Lenses. vol. BS EN ISO 21987 : 2009 (BSI, London, 2009).