Baradaran, A., &Alavi, M, R. (2015). The difference between extrovert/introvert EFL learners' cooperative writing.International Journal of Language Learning and Applied Linguistics World (IJLLALW), 8(2), 13-24.
Brown, L. H. (2000). Using personality type to predict student success in a technology-rich classroom environment.Unpublished doctoral dissertation, North Carolina State University, USA.
Brumfit, C. J. (1979). ‘Communicative’ language teaching: An educational perspective. In C. J. Brumfit and K. Johnson (Eds.), The communicative approach to language teaching (pp.183-191). Oxford UP.
Budner, S. (1962).Intolerance of ambiguity as a personality variable.Journal of Personality, 30(1), 29-50.
Burgoon, J. K. (1976). The unwillingness-to-communicate scale: Development and validation. Communications Monographs, 43(1), 60-69.
Chapelle, C. (1983). The relationship between ambiguity tolerance and success in acquiring English as a second language in adult learners.Unpublished doctoral dissertation, University of Illinois, United States.
Chu, W. H., Lin, D. Y., Chen, T. Y., Tsai, P. S., & Wang, C. H. (2014).The relationships between ambiguity tolerance, learning strategies, and learning Chinese as a second language.System, 49, 1-16.
Cook, V. (1996). Second Language Learning (2nd Ed.) New York: Arnold.
Durrheim, K., & Foster, D. (1997).Tolerance of ambiguity as a content specific construct.Personality and Individual Differences, 22, 741-750.
Ely, C. M. (1986).An analysis of discomfort, risktaking, sociability, and motivation in the L2 classroom.Language Learning, 36, 1-25.
Ely, C. M. (1988). Personality: its impact on attitudes toward classroom activities. Foreign Language Annals, 21, 25-32.
Ely, C. M. (1989).Tolerance of ambiguity and use of second language strategies.Foreign Language Annals, 22, 437-445.
Ely, C. M. (1995).Tolerance of ambiguity and the teaching of ESL.In J. M. Reid (Ed.).Learning styles in the ESL/EFL classroom. Boston: Heinle&Heinle.
Endler, N. S. (1973). The person versus the situation - a pseudo issue?A response to Alker.Journal of Personality, 41, 287-303.
Frenkel-Brunswick, E. (1949). Intolerance of ambiguity as an emotional and perceptual personality variable.Journal of Personality, 11(1), 108−143.
Furnham, A., &Ribchester, T. (1995). Tolerance of ambiguity: A review of the concept, its measurement and applications. Current Psychology, 14, 179-199.
Gass, S., &Selinker, L. (1994). Second language acquisition: An introductory course. Hillsdale, NJ: Lawerance Erlbaum.
Hampson, S. E. (1982). The construction of personality: an introduction. Retrieved March 27, 2009 from: http://books.google.com/books?id=LE8OAAAAQAAJ&sitesec=reviews &source=gbs_navlinks_s.
Hashimoto, Y. (2002). Motivation and willingness to communicate as predictors of reported L2 use: the Japanese ESL context. Second language studies, 20(2), 29-70.
Jalili, S., & Mall-Amiri, B. (2015).The difference between extrovert and introvert EFL teachers’ classroom management.Theory and Practice in Language Studies, 5(4), 826-836.
Kazamia, V. (1999). How tolerant are Greek EFL learners of foreign language ambiguities? Leeds Working Papers in Linguistics, 7, 69-78.
Kumar Panth, M., Sahu, V., & Gupta, M. (2015).A comparative study of emotional intelligence and intelligence quotient between introvert and extrovert personality.International Journal of Research in Humanities, Arts and Literature (IMPACT: IJRHAL), 3(5), 41-54.
Laney, M. O. (2002). The introvert advantage: How to thrive in an extrovert world. New York: Workman Pub.
MacDonald, A. (1970). Revised scale for ambiguity tolerance: Reliability and validity. Psychological Reports, 26, 791-798.
MacIntyre, P. D. (1994). Variables underlying willingness to communicate: A causal analysis. Communication Research Reports, 11, 135-142.
MacIntyre, P. D., Dörnyei, Z., Clément, R., & Noels, K. A. (1998).Conceptualizing willingness to communicate in a L2: A situational model of L2 confidence and affiliation.Modern Language Journal, 82(4), 545-562.
MacIntyre, P. D., Baker, S. C., Clément, R., &Conrod, S. (2001). Willingness to communicate, social support, and language-learning orientations of immersion students.Studies in Second Language Acquisition, 23, 369-388.
MacIntyre, P. D. (2007). Willingness to communicate in the second language: understanding the decision to speak as a volitional process. Modern Language Journal, 9(1), 564-576.
McCroskey, J. C. (1998). An introduction to communication in the classroom. Acton, MA: Tapestry Press.
McCroskey, J., & Baer, E. (1985).Willingness to communicate: The construct and its measurement. Paper presented at the Annual Convention of the Speech Communication Association, Denver, CO.
McLain, D. L. (1993). The MSTAT-I: a new measure of an individual's tolerance for ambiguity. Educational and Psychological Measurement, 53(1), 183-189.
Mischel, W. (1981). Personality and cognition: something borrowed, something new? In N. Cantor, & J. F. Kihlstrom (Eds.), Personality, cognition and social interaction (pp. 3-19) Hillsdale, NJ: Erlbaum.
Naiman, N., Froanhlich, M., Stern, H. H., &Toedesco, A. (1978).The good language learner. Toronto: Ontario Institute for Studies in Education (OISE).
Norton, R. W. (1975). Measurement of ambiguity tolerance.Journal of Personality Assessment, 39, 607-619.
Oxford, R. L. (1989). Use of language learning strategies: a synthesis of studies with implications for strategy training. System, 17, 235-247.
Papadopoulos, R. K. (1992). Carl Gustav Jung: The structure and dynamics of the psyche. London, New York: Routledge.
Piepho, H-E. (1981). Establishing objectives in the teaching of English. In C. N. Candlin (Ed.), The communicative teaching of English: Principles and an exercise typology (pp. 8-23). Essex: Longman.
Riasati, M. J. (2012). EFL learners' perception of factors influencing willingness to speak English in language classrooms: a qualitative study. World Applied Sciences Journal, 17(10), 1287-1297.
Senechal, D. (2011). Republic of noise: The loss of solitude in schools and culture. Maryland: Rowman& Littlefield Education.
Silverman, L. (2012). Introversion and giftedness. Denver, Colorado: Gifted Development Center in Denver, Colorado.
Thompson, S. (2012). Introvert or extrovert?Tips for a balanced classroom. Canadian Teacher Magazine, 5, 6-18.
Watanabe, M. (2011).Motivation, self-determination, and willingness to communicate by English learners at a Japanese high school.Temple University, Philadelphia.
Wen, W. P., & Clément, R. (2003).A Chinese conceptualization of willingness to communicate in ESL.Language, Culture and Curriculum, 16(1), 18-38.
Yea-Fen, C. (1995).Language learning strategies used by beginning students of Chinese in a semi-immersion setting.Unpublished doctoral dissertation, Indiana University, United States.
Zarfsaz, E., &Takkac, M. (2014). Silence in foreign language learning: an analysis of students’ risk taking behavior in an EFL classroom. International Journal of Language Learning and Applied Linguistics World (IJLLALW), 6(3), 307-321.
Zhou, N. (2014). Communication research in the EFL context: Challenges and directions. Mediterranean Journal of Social Sciences, 4(1), 11-20.