Gaya APA
Sumiratingratri, E, F, R.
(2009).
English is Fun
.
Bekasi:
Chaya Pustaka Raga.
Gaya MLA
Sumiratingratri, Erna, Fitri, Ratih.
"English is Fun".
Bekasi:
Chaya Pustaka Raga,
2009.
.