Zong, In-Sob, author
Hyangnin-Sa, 1970
Buku Teks
Hudson, William Henry, author
London George G. Harrap 1913
Buku Referensi
Clark, Timothy R.
Cambridge University Press, 2011
eBooks
New, Christopher, author
Routledge, 1999
Buku Teks
Hudson, William Henry, author
Heath, 1913
Buku Teks