Gaya APA

Rahayu, I, P. (2017). Enviromental issues and thinking level's in reading comprehension questions in English textbooks . Jakarta: Prodi Pendidikan Bahasa Inggris FBS UNJ.

Gaya MLA

Rahayu, Istia, Puji. "Enviromental issues and thinking level's in reading comprehension questions in English textbooks". Jakarta: Prodi Pendidikan Bahasa Inggris FBS UNJ, 2017. Text.