Gaya APA

ERNA, S, R, ,, . (2009). SPEAKING ENGLISH AT HOME AND SCHOOL . : PT CAHAYA PUSTAKA RAGA.

Gaya MLA

ERNA, SUMIRATINGRATRI, RATIH, ,FITRINI, . "SPEAKING ENGLISH AT HOME AND SCHOOL". : PT CAHAYA PUSTAKA RAGA, 2009. .