1392-yŏn Chosŏn ŭi kŏnʼguk putʻŏ 1637-yŏn Samjŏndo kuryok kkaji Chosŏn ŭl umjigin sakŏndŭlby Pyŏng-ju SinHistoryWriting a summary for young readers…For young readersBook data: Open Library