Home › Authors › Sang-sŏk O 👤 Sang-sŏk O b. 1953 · 2 books Books by Sang-sŏk O Chŏ sansŏng milbong pʻojang si Chŏ sansŏng milbong pʻojang sikpʻum ŭi kijun, kyugyŏk kukchehwa saŏp = 2007 Sikpʻum chung akʻŭrilamaidŭ mo Sikpʻum chung akʻŭrilamaidŭ monitʻŏring mit wihae pʻyŏngka = 2007