Gaya APA

A, M, Y, Y, D. (2008). let's study passive and active sentences (ayo belajar kalimat pasif dan aktif) . bandung: pakar raya.

Gaya MLA

A, Marta, Yuliani,, Yuniarti, Dwi.. "let's study passive and active sentences (ayo belajar kalimat pasif dan aktif)". bandung: pakar raya, 2008. Text.