Gaya APA
Koh,William. (2012).
The Eu Yan Sang Way .
Singapore:
Cengage Learning.
Gaya Chicago
Koh,William.
The Eu Yan Sang Way.
Singapore:
Cengage Learning,
2012.
Text.
Gaya MLA
Koh,William.
The Eu Yan Sang Way.
Singapore:
Cengage Learning,
2012.
Text.
Gaya Turabian
Koh,William.
The Eu Yan Sang Way.
Singapore:
Cengage Learning,
2012.
Print.