Joralemon, Donald, author
Routledge, 2017
Buku Teks
Stowe, Keith S., 1943-, author
John Wiley & Sons, 1996
Buku Teks
Olding, Simon, author
Her Majesty's Stationary Office, 1989
Buku Referensi
Wilson, Josephine F., author
Thomson/Wadsworth, 2003
Multimedia
Korea National Tourism Organization, 1996
Multimedia