1. Abramowitz, J. and Berg, L. E. (1973). A four-year study of the utilisation of dental assistants with expanded functions. J. Amer. Dent. Ass., 87, 623
2. Allred, H., Hobdell, M. H. and Elderton, R. J. (1973). The establishment of an experimental dental care project. Br. Dent. J., 135, 205
3. Arnold, G. T. E. R. (1970). Extended duties of dental auxiliaries increase efficiency. Quintessence Int., 1, 65-72, 77
4. Barber, T. K. (1964). Synchronised tape and slides as a method of teaching dental technics. J. Dent. Educ, 28, 43
5. Barnes, D. S. and Holloway, P. J. (1970). Small and large group teaching in clinical dentistry. Br. Dent. J., 129, 201