Emma Beare, editor
Bounty Books, 2013
Buku Referensi
Trifoni, Jasmina
White Star Publishers, 2013
Buku Referensi
Zhang Chunxia
Baiwanzhuang Street, 2009
Buku Teks
BBC Earth (Firm)
Lonely Planet, 2010
Buku Referensi
APA Publications , 2007
Buku Referensi