1. Baker, R.G. (1981). Guidelines for the subtitling of television programmes for the deaf and hard of hearing. Southampton, UK: Southampton University.
2. Broadbent, D.E. (1958). Perception and communication. Oxford: Pergamon Press.
3. Control of language processes;FIM Craik,1984
4. D’Ydewalle, G., Praet, C., Verfaillie, K., & Van Rensbergen, J. (1991). Choosing between redundant information channels: Speech and text. Communication Research, 18, 650–666.
5. D’Ydewalle, G., & Van Rensbergen, J. (1989). Developmental studies of text-picture interaction in the perception of animated cartoons with text. In H. Mandl & J.R. Levin (Eds.), Knowledge acquisition from text and pictures (pp. 223–248). Amsterdam: Elsevier Science Publishers B.V. (North-Holland).