Gaya APA
Effective English 1A : for grade VII of junior high school first half - year. (2007).
Solo:
Tiga Serangkai Pustaka Mandiri.
Gaya MLA
Effective English 1A : for grade VII of junior high school first half - year.
Cetakan Pertama.
Solo:
Tiga Serangkai Pustaka Mandiri,
2007.
Text.