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A Study on Learning Processes of Japanese Learners in the Latter Half of a Preliminary Korean Language Course: Results of the「Hangul」Proficiency Verification Test(Class IV). Korean Language Education Research. 2017. 7
Study on the Question Types of the Korean Language Proficiency Test and Korean Language Proficiency of Learners at the Intermediate Level-Focusing on analysis of rhe grade 3 written test-. Journal of the International Network for Korean Language and Culture. 2015. 12. 1