Gaya APA

Riyanto, S. (2009). English for your better future: Speak english,please (Ayo ngomong inggris) 1 . Gorontalo: Lanskap Zaman,dan Pustaka Pelajar.

Gaya MLA

Riyanto, Slamet. "English for your better future: Speak english,please (Ayo ngomong inggris) 1". Gorontalo: Lanskap Zaman,dan Pustaka Pelajar, 2009. Text.