Gaya APA

kusumanigrum, B, Y, C, S, R. (2011). practical techniques for english language teaching . Malang: cahyono, B.Y & kusumanigrum ,S.R.

Gaya MLA

kusumanigrum, Bambang, Yudi, Cahyono, Shirly, Rizki. "practical techniques for english language teaching". Malang: cahyono, B.Y & kusumanigrum ,S.R, 2011. .