Sam-yŏl Yi

• Haeoe esŏ hamkke han minjuhwa undong
• Han'guk minjujuŭi ŭi mirae wa kwaje
• Hangmun (hangmun), ŏttŏkʻe hal kŏs inʼga?
• Hanʾguk sahoe palchŏn kwa kidokkyo ŭi yŏkhal
• Hyŏnsil kaejo rŭl hyanghan sahoe ch'ŏrhak ŭi mosaek
• Kidokkyo wa sahoe inyŏm
• Kidokkyowa sahoe inyŏm
• Marksŭ-chuŭi wa kidokkyo sasang
• Night navigator
• Pʻyŏnghwa ŭi chʻŏrhak kwa tʻongil ŭi silchʻŏn
• Pʻyŏnghwa ŭi pogŭm kwa tʻongil ŭi samyŏng
• Sahoe palchŏn ŭl hyanghan chibang chachʻi =