Vega, Connie de la, author
Edward Elgar Publishing, 2013
Buku Referensi
edited by Ben Boer
Oxford University Press, 2015
Buku Teks
edited by A.H. Robertson
Manchester University Press, 1968
Buku Teks
UNESCO, 1977
Buku Teks
Han, Zhen, author
China Renmin University Press, 2015
eBooks