Dui zheng yin shi yu zheng que xue wei an mo, cheng wei ji bing jue yuan tiChae-yong Sin · First published 2012Open the Tome
Ch'ejil e ttara ch'iryo hyokwa 100% nop'inŭn ch'ejil ŭmsik tongŭi pogamChae-yong Sin · First published 2010Open the Tome