Gaya APA

Purwoko, H. et al (2002). Stepping Stone [Jilid 3]: English for Junior High School Students Grade III [Curriculum of 1994 Supplement of 1999] (Cet. 1.--). Jakarta: Esis.

Gaya MLA

Purwoko, Herudjati. et al. "Stepping Stone [Jilid 3]: English for Junior High School Students Grade III [Curriculum of 1994 Supplement of 1999]". Cet. 1.-- Jakarta: Esis, 2002. Text.