1992
1993
Orchiston, D. Wayne.
| Yonsei University Press |
2004
1994
Orlich, Donald C.
| D.C. Heath |
1994
1995
Osborne, Charles,
| Harcourt Brace Jovanovich |
1979
1999
2000
Pak, Un jong
| Seoul National University Press |
2005
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