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Jo, Yung Soon; Kim, Yoo Yung; Mechanical drawing -- Examinations -- Korea (South); Vocational education -- Korea (South); Yung Nam Academy -- Students; Newsfront
Remove constraint Subject: Jo, Yung Soon; Kim, Yoo Yung; Mechanical drawing -- Examinations -- Korea (South); Vocational education -- Korea (South); Yung Nam Academy -- Students; Newsfront