Gaya APA

Oktarina, I, D. (2013). Improving student's speaking skill through critical thinking at the third semester student of english study program tarbiyah departemen stain palopo . Palopo: Sekolah Tinggi Agama Islam (STAIN) Palopo.

Gaya MLA

Oktarina, Ika, Diani. "Improving student's speaking skill through critical thinking at the third semester student of english study program tarbiyah departemen stain palopo". Palopo: Sekolah Tinggi Agama Islam (STAIN) Palopo, 2013. Text.