1Bachman, L.F., and Palmer, A.S. 1989: The construct validation of self-ratings of communicative language ability. Language Testing 6,14-29.
2Heilenman, L, K. 1990. Self-assessment of second language abilitiy: the role of response effects. Language Testing 7/2:174-201.
3Krausert, S. R. 1991. Determine the usefulness of self-assessment of foreign language skills: Post-secondary ESL students placement contribution (postsecondary). Unpublished doctoral dissertation, University of Southern California.
4Lauoma, S. and Tarnanen, M. 2003: Creating a self-rating instrument for second language writing: from idea to implementation. Language Testing, 20 (4) 440-465.
5Oscarson, M. 1980: Approaches to self-assessment in foreign language learning. Council of Europe.
6Upshur, J. A. 1975 :Objective evaluation of oral proficiency in the ESOL classroom. Papers on Language Testing 1967-1974, ed. L.Palmer & B. Spelsky. Washington, D. C. TESOL.
