Im, C. (1955). Chuhae kangsŏl Hanʼgul Kŭmgang kyŏng =: Chuhae kangsŏl Hanʼgul Kŭmgang kyŏng. Wŏnʼgwang Taehak Kyohak Yŏnʼguhoe.
Lua i Stíl Chicago (17ú heag.)Im, Chong-gwŏn. Chuhae Kangsŏl Hanʼgul Kŭmgang Kyŏng =: Chuhae Kangsŏl Hanʼgul Kŭmgang Kyŏng. Iksan: Wŏnʼgwang Taehak Kyohak Yŏnʼguhoe, 1955.
Lua MLA (8ú heag.)Im, Chong-gwŏn. Chuhae Kangsŏl Hanʼgul Kŭmgang Kyŏng =: Chuhae Kangsŏl Hanʼgul Kŭmgang Kyŏng. Wŏnʼgwang Taehak Kyohak Yŏnʼguhoe, 1955.
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