Hae-sŏng Yi

Korae

2004

Arŭmdaun ttang, kkakchaengi na

Arŭmdaun ttang, kkakchaengi nara Kʻaenada munhwa ilkki

2002

Yŏksajŏk kyoyuk sahoehak ŭi ch

Yŏksajŏk kyoyuk sahoehak ŭi chaengjŏm kwa pangbŏp

1998

Tʻongchʻi chʻeje ŭi mosun kwa

Tʻongchʻi chʻeje ŭi mosun kwa hakkyo kyoyuk

1988