Korea annual 1998 : 35th a comprehensive handbook on Korea
edited by Oh Chul-ho
Yonhap News Agency, 1998
Buku Referensi
Korea annual 1984 : a comprehensive handbook on Korea, 21st annual edition
Yonhap News Agency, 1984
Buku Referensi
Korea annual 1991 : a comprehensive handbook on Korea, 28th annual edition
Yonhap News Agency, 1991
Buku Referensi
Korea annual 1994 : a comprehensive handbook on Korea, 31st annual edition
Yonhap News Agency, 1994
Buku Referensi
A handbook of Korea
Korean Overseas Information Service, 1993
Buku Referensi