Askov, E., Otto, W., and Askov, W.1970. A decade of research in hand-writing: progress and prospect. Journal of Educational Research, 64, No. 3.
2.
Frostig, M. and Horne, D.1964. The Frostig program for the development of visual perception. Chicago: Follett Publishing Company.
3.
Furner, B.A.1970. An analysis of the effectiveness of a program of instruction emphasizing the perceptual motor nature of learning handwriting. Elementary English, 47, 61–69.
4.
Jonas, H.1974. The Family Creative Workshop, 213–221. Plenary Publications International.
5.
Levine, N. and Carter, J.1968. Handwriting for the learning disabled. Academic Therapy, 14:1.
6.
Markoff, A.M.1976. Teaching low-achieving children reading, spelling and handwriting. Springfield, IL: Charles C Thomas.