1. American Council on the Teaching of Foreign Languages. (2004). ACTFL Policy on Oral Proficiency Interview Retesting. https://www.regent.edu/acad/undergrad/pdf/ACTFL_Policy
2. American Council on the Teaching of Foreign Languages (2012a). Oral Proficiency Interview Familiarization Manual. Alexandria, VA: ACTFL.
3. American Council on the Teaching of Foreign Languages (2012b). Oral Proficiency Interview Computerized Familiarization Manual. Alexandria, VA: ACTFL.
4. American Council on the Teaching of Foreign Languages (2012c). Performance Descriptors for Language Learners, 2012 Edition. Alexandria, VA: ACTFL.
5. Becker, C. B. (1986). Reasons for lack of argumentation and debate in the Far East. International Journal of Intercultural Relations, 10(1), 75–92.