Oh, Song-chan, 1940-
Jeju thosok chimyong sajon = Jeju native gazettee
Min Eum Sa, 1992
 Buku Referensi
Jeju Islan: an Island of sky and sea
Jeju Tourism Organization, 2011
 Buku Teks SO
Chapman, Sandra C.
Core electrodynamics
Taylor & Francis, 2000
 Buku Teks SO
Hughes, Michael
Sociology: the core
McGraw-Hill, Higher Education, 2009
 Buku Teks SO
Zanden, James W. Vander
Sociology the core
McGraww-Hill, 1996
 Buku Teks SO