Thomas, author
Buku Teks
edited by Martin Bellman
Churchill Livingstone, 2006
Buku Teks
Johnston, Peter G.B.
China, Elsevier,
Buku Teks
Vasta, Ross, author
John Wiley & Sons, 2004
Buku Teks
Hurlock, Elizabeth Bergner, 1898-, author
McGraw-Hill, 1985
Buku Teks