Gaya APA
Zamakhson, ., Madjdi, H. (2004).
Competency Standard Progress : A Contextual Approach to Learning English .
Jakarta:
Ganeca Exact.
Gaya MLA
Zamakhson, ., Madjdi, Hilal.
"Competency Standard Progress : A Contextual Approach to Learning English".
Jakarta:
Ganeca Exact,
2004.
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