Gaya APA
Smart Steps The Smartest Way to Learn English. (2005).
Jakarta:
Ganeca Exact.
Gaya Chicago
Smart Steps The Smartest Way to Learn English.
2005.
Jakarta:
Ganeca Exact,
2005.
Text.
Gaya MLA
Smart Steps The Smartest Way to Learn English.
2005.
Jakarta:
Ganeca Exact,
2005.
Text.
Gaya Turabian
Smart Steps The Smartest Way to Learn English.
Jakarta:
Ganeca Exact,
2005.
Print.