Gaya APA

Dewi, I, K. et al (2010). Stairway A Fun and Easy English Book for Grade 1 of Elementary Schools . Solo: PT Tiga Serangkai Pustaka Mndiri.

Gaya MLA

Dewi, Ida, Kusuma. et al. "Stairway A Fun and Easy English Book for Grade 1 of Elementary Schools". Solo: PT Tiga Serangkai Pustaka Mndiri, 2010. Text.