Hong Kong : Eastern Horizon Press
Majalah, Jurnal, Buletin
Geniusas, Saulius
Springer, 2012
eBooks
Jones, Becky
BBC Worldwide Limited, 2006
Multimedia
Stevenson, Juliet
BBC Worldwide Limited, 2002
Multimedia
Mukul Majumda, editor
World Scientific, 2016
Buku Teks