1. A classification of concomitant strabismus;Pugh;Brit. J. Ophth.,1934
2. Anomalies of Accommodation and Refraction;Donders;(Translation), New Syndenham Soc., London,1864
3. Physiotherapy in ophthalmology;Davis;N. Carolina M. J.,1941
4. Squint;Worth,1903
5. Etiology of convergent strabismus;Smith;Tr. Ophth. Soc. U. Kingdom,1898