Gaya APA
Sri Widayati, dkk.. (2004).
BI : Happy with English Grade 2 semester 1 and 2 .
Jakarta:
Ganeca Exact.
Gaya Chicago
Sri Widayati, dkk..
BI : Happy with English Grade 2 semester 1 and 2.
Jakarta:
Ganeca Exact,
2004.
Text.
Gaya MLA
Sri Widayati, dkk..
BI : Happy with English Grade 2 semester 1 and 2.
Jakarta:
Ganeca Exact,
2004.
Text.
Gaya Turabian
Sri Widayati, dkk..
BI : Happy with English Grade 2 semester 1 and 2.
Jakarta:
Ganeca Exact,
2004.
Print.