[Choomthong, D. (2014). Preparing Thai students’ English for the ASEAN Economic Community: Some pedagogical implications and trends. Language Education and Acquisition Research Network (LEARN) Journal, 7(1), 45-57.]Search in Google Scholar
[Derakhshan, A., Tahery, F., & Mirarab, N. (2015). Helping adult and young learners to communicate in speaking classes with confidence. Mediterranean Journal of Social Sciences, 6(2), 520-525.10.5901/mjss.2015.v6n2p520]Search in Google Scholar
[Gruber, K. (2014, February 19). The Importance of Self-Confidence. Livestrong.com. Retrieved from http://www.livestrong.com/article/138172-the-importance-self-confidence/]Search in Google Scholar
[Heng, C. S., Abdullah, A. N., & Yusof, N. B.. (2012). Investigating the construct of anxiety in relation to speaking skills among ESL tertiary learners. 3L: The Southeast Asian Journal of English Language Studies, 18(3), 155-166.]Search in Google Scholar
[Horwitz, E. K., Horwitz, M. B., & Cope, J. (1986). Foreign language classroom anxiety. The Modern Language Journal, 70(2), 125-132.10.1111/j.1540-4781.1986.tb05256.x]Search in Google Scholar
[Inthakanok, I. (2009-2011). Speaking anxiety of a group of Thai EFL university students: Its sources and coping strategies. Journal of Education Silapakorn University, 1-2, 82-101.]Search in Google Scholar
[Kwangsawad, T. (2007). Bridging the gap between CBT and CBI theories in Thai small rural schools. Proceedings of the 1st International Conference on Educational Reform 2007. Mahasarakham: Mahasarakham University.]Search in Google Scholar
[Liu, M. (2007). Anxiety in oral English classrooms: A case study in China. Indonesian Journal of English Language Teaching, 3(1), 119-137.]Search in Google Scholar
[Mak, B. (2011). An exploration of speaking-in-class anxiety with Chinese ESL learners. System, 39, 202-214.10.1016/j.system.2011.04.002]Search in Google Scholar
[Mayer, R. E. (2003). Learning and instruction. Upper Saddle River, NJ: Pearson Education, Inc.]Search in Google Scholar
[Oxford, R. (1999). Anxiety and the language learner: New insights. In J. Arnold (Ed.), Affect in language learning (pp. 58-67). Cambridge: Cambridge University Press.]Search in Google Scholar
[Oxford, R. L. (2003). Language learning styles and strategies: An overview. Proceedings of the Generative Approaches to Language Acquisition Conference (GALA) 2003. (pp. 1-25). Retrieved from http://web.ntpu.edu.tw/~language/workshop/read2.pdf.]Search in Google Scholar
[ÖztÜrk, G., & GÜrbÜz, N. (2013). The impact of gender on foreign language speaking anxiety and motivation. Procedia-Social and Behavioral Sciences, 70, 654-665.10.1016/j.sbspro.2013.01.106]Search in Google Scholar
[ÖztÜrk, G., & GÜrbÜz, N. (2014). Speaking anxiety among Turkish EFL learners: The case at a state university. Journal of Language and Linguistic Studies, 10(1), 1-17.]Search in Google Scholar
[Sadeghi, K., Mohammadi, F., & Sedaghatgoftar, N. (2013). From EFL classroom into the mainstream: A socio-cultural investigation of speaking anxiety among female EFL learners. International Journal of Society, Culture & Language, 1(2), 117-132.]Search in Google Scholar
[Scovel, T. (1978). The effect of affect on FL learning: A review of the anxiety research. Language Learning, 28(1), 129-142.10.1111/j.1467-1770.1978.tb00309.x]Search in Google Scholar
[Spielberger, C. D. (1983). Manual for the state-trait anxiety inventory. Palo Alto, CA: Consulting Psychologists Press.]Search in Google Scholar
[Stewart, F., & Tassie, K. E. (2011). Changing the atmos‘fear’ in the public speaking classroom. International Journal of Humanities and Social Science, 1(7), 9-13.]Search in Google Scholar
[Subaşi, G. (2010). What are the main sources of Turkish EFL students’ anxiety in oral practice? Turkish Online Journal of Qualitative Inquiry, 1(2), 29-49.]Search in Google Scholar
[Woodrow, L. (2006). Anxiety and speaking English as a second language. RELC Journal, 37(3), 308-328.10.1177/0033688206071315]Search in Google Scholar
[Zhiping, D., & Paramasivam, S. (2013). Anxiety of speaking English in class among international students in a Malaysian university. International Journal of Education and Research, 1(11), 1-16.]Search in Google Scholar