edited by Bruce Campbell and Elizabeth Lack
Buteo Books, 1985
Buku Referensi
Thomas Diefenbach, author
Ritsumeikan Asia Pacific University (APU), 2015
Artikel Jurnal
Park Jung Ja
Seoul : Korea, 2000
Buku Teks
Stefferud, Alfred, editor
United States. Government Printing Office, 1966
Buku Referensi
Martin, Graham R.
Oxford University Press, 2017
eBooks