1. Boonkongsaen, N. (2018). Communication Strategies Used by Thai EFL Teachers. The New English Teacher, 12(1). Retrieved from http://www.assumptionjournal.au.edu/index.php/newEnglishTeacher/article/view/2837 Boxer, D., Cohen, A. D. (Eds.). (2004). Studying speaking to inform second Language learning (Vol. 8). Multilingual Matters.
2. Carmen, A., Cervantes, R., Rodriguez, R. R. (2012, November). The Use of Communication Strategies in the Beginner EFL Classroom. Retrieved from https://files.eric.ed.gov/fulltext/EJ1062702.pdf
3. Dörnyei, Z. (1995). On the teachability of communication strategies. TESOL Quarterly, 29(1), 56. doi:10.2307/3587805
4. Dörnyei, Z., Scott, M. L. (1995a, March). Communication strategies: What are they and what are they not? Paper presented at the Annual Conference of the American Association for Applied Linguistics (AAAL), Long Beach, CA.
5. Dörnyei, Z., Scott, M. L. (1995b). Communication strategies: An empirical analysis with retrospection. In J. S. Turley, K. Lusby (Eds.), Selected papers from the proceedings of the 21st Annual Symposium of the Deseret Language and Linguistics Society (pp.155-168). Provo, UT: Brigham Young University.
6. Dörnyei, Z., , Scott, M. L. (1997, March). Communication Strategies in a Second Language: Definitions and Taxonomies. Retrieved from https://prezi.com/j6dgtr4f_1oh/problems-with-verbal-communication/
7. Eastern Economic Corridor. (2019). Why EEC Government Initiative. Retrieved from https://www.eeco.or.th/en/government-initiative
8. Faerch, C., Kasper, G. (1983). Plans and Strategies in Foreign Language Communication. In Faerch, Kasper (Eds.), Strategies in Interlanguage Communication (pp. 20-60). UK: Longman
9. Joungtrakul, N. (2013). Thai Engineers’ Readiness to Cope with the Free Flow ofSkilled Labor in the ASEAN Economic Community. HRD Journal. 4/1, 6 –21.
10. Pisarnvanich, A., Nukprach, O. (2012). The analysis of competitive potential of professionals in the free trades in services sector under the AEC (in Thai).Bangkok: Center for International Trade Study, Bangkok: University of Thai Chamber of Commerce.
11. Jeharsae, F. (2012). English oral communication problems and strategies used by Thai employees in an international workplace to communicate with native and non-native English (Master's thesis, Srinakarinwirot, Bangkok, Thailand). Retrieved from http://ir.swu.ac.th/xmlui/bitstream/handle/123456789/4231/Fatimah_J.pdf?sequence=1
12. Metcalfe, J., , Noom-Ura, s. (2013). Communication Strategy Use of High and Low Proficiency Learners of English at a Thai University. LEARN Journal, 6(1), 66-87. Retrieved from https://so04.tci-thaijo.org/index.php/LEARN/article/view/102722/82269
13. Monklom, P. (2019, December 1). Exploring communication strategies in cross-cultural interaction between native English teachers and Thai EFL teachers. Retrieved from https://so03.tci-thaijo.org/index.php/Humanties-up/article/view/200304
14. Nakatani, Y. (2006). Developing an oral communication strategy inventory. The Modern Language Journal, 90(2), 151-168. doi:10.1111/j.1540-4781.2006.00390.x
15. Ruel, E. (2018). 100 questions (and answers) about survey research (1st ed.). SAGE Publications.
16. Selinker, L. (1972). Interlanguage. IRAL, 10, 209–230.
17. Shrestha, R. N., Pahari, B. R., , Awasthi, J. R. (2017). Importance of English in engineering for professional communication: A study in the Nepalese context. Journal of the Institute of Engineering, 12(1), 222-227. doi:10.3126/jie.v12i1.16906
18. SOKANU Interactive Inc. (2018, April 2). What does an engineer do? ‐ CareerExplorer. Retrieved from https://www.careerexplorer.com/careers/engineer/
19. Tarone, E. (1977). Conscious communication strategies in interlanguage: A progress report. TESOL, 77(194-203).
20. Tarone, E. (1980). Communication strategies, foreigner talk, and repair in interlanguage. Language learning, 30(2), 417-428.