Nongsŏ charyo e nat'anan ŏhwijang ŭi pullyu mit p'yogipŏp yŏn'guKwang-ho Yi · First published 2013Open the Tome
Kugŏ p'asaeng chŏpsa ŭi saengsansŏng kwa chŏji e taehan kyeryangjŏk yŏn'guKwang-ho Yi · First published 2009Open the Tome
Taejŏn Andong Kwŏn Ssi Yuhoedangga Han'gŭl kanch'al oeKwang-ho Yi · First published 2009Open the Tome
Kukto sarang paenang yohaeng hwaltong (Chongsonyon suryon kori)Kwang-ho Yi · First published 1997Open the Tome
Ku Hanmal kŭndae kyoyuk chʻeje wa hangnyŏkchuŭi yŏnʾguKwang-ho Yi · First published 1996Open the Tome
