References
- COONEY, ANNE — Sign It and Say It. Stockton Hospital Welfare Association, 1980
- COOPER, MOODLEY and REYNELL— Helping Language Development, Arnold, 1979
- MILLINGTON, ANN — “O.T. with signs solves problems of behaviour”, Occupational Therapy, p. 184. July 1976
- THOMSON, FAY — “Developing new ways to communicate”, Therapy, July 1979
- WALKER, MARGARET — The Makaton Vocabulary pp. 172–184, Ways and Means Resource Book. Information from the Makaton Vocabulary Development Project, Camberley, Surrey