Auerbach, E. R. (1993). “Reexamining English Only in the ESL Classroom”.
TESOL Quarterl, 27(1), 9-32.
Auerbach, E. R. (2016). “Reflections on Auerbach (1993), 'Reexamining English Only in the ESL Classroom'”.
TESOL Quarterly, 50(4), 936-939.
Bidwell, L. M., Grether, S. T., & Pederson, J. (2020). “Disruption and difficulty:Student and faculty perceptions of the transition to online instruction in the COVID-19 pandemic”, Edited by J. M Ryan, COVID-19, 31-86. London, England: Routledge.
Brooks-Lewis, K. A. (2009). “Adult learners'perceptions of the incorporation of their L1 in foreign language teaching and learning”.
Applied Linguistics, 30(2), 216-235.
Byun, Kiyong., Chu, Huijung., Kim, Minjung., Park, Innwoo., Kim, Suhong., & Jung, Juyoung. (2011). “English-medium teaching in Korean higher education:Policy debates and reality”.
High Education, 62(4), 431-449.
Cenoz, J., & Gorter, D. (2011). “A Holistic Approach to Multilingual Education:Introduction”.
The Modern Language Journal, 95(3), 339-342.
Cenoz, J., & Gorter, D. (2013). “Towards a Plurilingual Approach in English Language Teaching:Softening the Boundaries Between Language”.
TESOL Quarterly, 47(3), 591-599.
Choi, Tae-Hee. (2014). “The Impact of the ”Teaching English through English“policy on teachers and teaching in South Korea”.
Current Issues of Language Planning, 16(3), 201-220.
Copeland, C., & Franzese, J. (2021). “Using the Technology Acceptance Model to Understand Attitudes about a Virtual Learning Environment for EFL Writing”.
Korean Journal of General Education, 15(5), 215-227.
Cook, V. J. (2001). “Using the first language in the classroom”.
Canadian Modern Language Review, 57(3), 402-423.
Cook, V. J. (2003). “Introduction:The changing L1 in the L2 user's mind”, Edited by V Cook, Effects of the second language on the first, 1-18. Clevedon, England: Multilingual Matters.
Cummins, J. (2008). “Teaching for transfer:Challenging the two solitudes assumption in bilingual education”. Cummins J, Hornberger N. H
Encyclopedia of language and education, Vol. 5 Bilingual education, 2nd ed. 65-75. New York: Springer.
Cummins, J. (2009). “Multilingualism in the English-language Classroom:Pedagogical Considerations”.
TESOL Quarterly, 43(2), 317-321.
de la Campa, J. C., & Nassaji, H. (2009). “The Amount, Purpose, and Reasons for Using L1 in L2 Classrooms”.
Foreign Language Annals, 42(4), 742-759.
Inbar-Lourie, O. (2010). “English only?The linguistic choices of teachers of young EFL learners”.
International Journal of Bilingualism, 14(3), 351-367.
Jacobson, R., & Faltis, C. (1990). Language Distribution Issues in Bilingual Schooling, Clevedon, UK: Multilingual Matters.
Johnson, R. K., & Swain, M. (1994). “From Core to Content:Bridging the L2 Proficiency Gap in Late Immersion”.
Language and Education, 8(4), 211-229.
Larsen-Freeman, D., & Anderson, M. (2011). “Chapter 3:The Direct Method”, In Techniques &Principles (Eds.), Language Teaching, 25-34. Oxford, UK: Oxford University Press.
Lee, Gyungsook Jane. (2014). “Why Students Don't Participate in English Medium Instruction Classes in a Korean University:A Case Study”.
English Teaching, 69(1), 91-117.
Lee, Jang Ho., & Lo, Yuen Yi. (2017). “An exploratory study on the relationships between attitudes toward classroom language choice, motivation, and proficiency of EFL learners”.
System, 67:121-131.
Lee, Kwang Hyun., & Hong, Ji Young. (2015). “Study on the situations and learning effect of English medium instruction at Korean Universities”. The Journal of Local Education Management, 18(1), 1-22.
Levine, G. (2003). “Student and instructor beliefs and attitudes about target language use, first language use, and anxiety:Report of a questionnaire study”.
Modern Language Journal, 87(3), 343-354.
Liu, Dilin., Ahn, Gil-Soon., Baek, Kyung-Suk., & Han, Nan-Ok. (2004). “South Korean high school English teachers'code switching:Questions and challenges in the drive for maximal use of English in teaching”.
TESOL Quarterly, 38(4), 605-638.
Kim, Eun Gyong., Kweon, Soo-Ok., & Kim, Jeongyeon. (2016). “Korean engineering students'perceptions of English-medium instruction (EMI) and L1 use in EMI classes”.
Journal of Multilingual and Multicultural Development, 38(2), 130-145.
Kohi, M., & Suvarna Lakshmi, G. (2020). “Use of L1 in ESL/EFL Classroom:Multinational Teachers'Perceptions and Attitudes”. International Journal of English Language &Translation Studies, 8(3), 88-96.
Marco, E., & Lee, J. H. (2013). “Teacher Language Background, Codeswitching, and English-Only Instruction:Does Age Make a Difference to Learners'Attitudes?”.
TESOL Quarterly, 47(4), 717-742.
McMillan, B.A., & Rivers, D. J. (2011). “The practice of policy:Teacher attitudes toward 'English only'”.
System, 39(2), 251-263.
McKay, S. L. (2012). “Chapter 3:Principles of Teaching English as an International Language”, Edited by L Alsagoff, S. L McKay, G Hu, W. A Renandya, Principles and Practices for Teaching English as an International Language, 28-46. New York, NY: Routledge.
Mohebi, H., & Alavi, S. M. (2014). “An investigation into teachers'first language use in a second language learning classroom context:a questionnaire-based study”.
Bellaterra Journal of Teaching and Learning Language and Literature, 7(4), 57-73.
Nunan, D. (2003). “The Impact of English as a Global Language on Educational Policies and Practices in the Asia Pacific Region”.
TESOL Quarterly, 37(4), 589-613.
Shabir, M. (2017). “Student-Teachers'Beliefs on the Use of L1 in EFL Classroom:A Global Perspective”.
English Language Teaching, 10(4), 45-52.
Tamimi Sa'd, S. H., & Quadermazi, Z. (2015). “L1 Use in EFL Classes with English-only Policy:Insights from Triangulated Data”.
CEPS Journal, 5(2), 159-175.
Tsagari, D., & Giannikas, C. N. (2018). “Re-evaluating the use of L1 in the L2 classroom:students vs. teachers”. Applied Linguistics Review, 11(1), 151-181.
Turnbull, B. (2018). “Examining pre-service ESL teacher beliefs:perspective on first language use in the second language classroom”. Journal of Second Language Teaching and Research, 6(1), 50-76.
Van der Meij, H., & Zhao, X. (2010). “Codeswitching in English courses in Chinese universities”.
Modern Language Journal, 94(3), 396-411.
Yao, M. (2011). “On attitudes to teachers'code-switching in EFL classes”.
World Journal of English Language, 1(1), 19-28.
Yenice, Z. E. (2018). The Use of L1 in EFL Classrooms in the Context of Turkey, UludağUniversity, Bursa, Turkey.