1. Atamanova, I., & Bogomaz, S. (2014). Ambiguity tolerance as a psychological factor of foreign language communicative competence development. Procedia-Social and Behavioral Sciences, 154, 345-352.
2. Brougher, J. Z. (1984). Elementary teacher perceptions of and responses to ambiguity (tolerance). Dissertation Abstracts International, Section A: The Humanities and Social Science (DAI-A), 45(04), 1071.
3. Brown, H. D. (2000). Principles of language learning and teaching (4th ed.). New York: Pearson Education Company.
4. Chapelle, C. A. (1983). The relationship between ambiguity tolerance and success in acquiring English as a second language in adult learners. (Unpublished doctoral dissertation). University of Illinois, Urbana-Champaign, USA.
5. Chapelle, C., & Roberts, C. (1986). Ambiguity tolerance and field independence as predictors of proficiency in English as a second language. Language Learning, 36, 17-45.