Gaya APA

(61413024), N, H. (2016). An Illocutionary Act in Barack Obama’s Speech . Surabaya: Universitas Widya Kartika.

Gaya MLA

(61413024), Nur, Hidayati. "An Illocutionary Act in Barack Obama’s Speech". Surabaya: Universitas Widya Kartika, 2016. Text.