McCall, S. and Stone, J.M. (1992), Literacy for blind children through moon: a possibility ?, British Journal of Visual Impairment, 10, 2, 53-54.
2.
McLinden, M.T. (1993), Writing in moon. A review of moon fonts currently available for production of the moon code, Newsletter No. 31 March 1993, RCEVH, School of Education, University of Birmingham.