Gaya APA
Effective English for Grade IX of Junior high school 3. (2005).
Solo:
Prentice Hall.
Gaya Chicago
Effective English for Grade IX of Junior high school 3.
Cet-1.
Solo:
Prentice Hall,
2005.
Text.
Gaya MLA
Effective English for Grade IX of Junior high school 3.
Cet-1.
Solo:
Prentice Hall,
2005.
Text.
Gaya Turabian
Effective English for Grade IX of Junior high school 3.
Solo:
Prentice Hall,
2005.
Print.