References
- Di Pietro, R. 1987. Strategic Interaction. New York: University Press.
- Krashen, S. 1982. Principles and Practice in Second Language Acquisition. Oxford: Pergamon.
- Rigg, P. 1990. Whole language in adult ESL programs. In ERICICLL News Bulletin, vol. 13, no. 2, pp. 1, 4-5,7.
- Vygotskii, L. 1978. The development of mind in society. Cambridge: Harvard University Press.
- White, L. 1986. Implications of parametric variation for adult SLA: an investigation of the Pro-drop parameter. In V. Cook (ed.), Experimental approaches to second language learning. Oxford: Pergamon.