Kennedy, J., author
Macmillan, 1962
Buku Teks
Lee, Yi-hwa, author
nI Se Sang, 2007
Buku Teks
Qiuming, author
Dong nan da xue chu ban she, 2017
eBooks
Lambiris, Michael
The University of Melbourne, 1994
Buku Teks
Wilbur, C. Martin
Field Museum of Natural History, 1943
Buku Teks