Gaya APA
Erna Fitriani, Ratih Sumiratingratri. (2009).
English Everywhere .
2009:
Cahaya Pustaka Raga.
Gaya Chicago
Erna Fitriani, Ratih Sumiratingratri.
English Everywhere.
2009:
Cahaya Pustaka Raga,
2009.
Text.
Gaya MLA
Erna Fitriani, Ratih Sumiratingratri.
English Everywhere.
2009:
Cahaya Pustaka Raga,
2009.
Text.
Gaya Turabian
Erna Fitriani, Ratih Sumiratingratri.
English Everywhere.
2009:
Cahaya Pustaka Raga,
2009.
Print.