Gaya APA

Wilson, A. (2015). The effects of vocabulary mastery and student's perception of teaching material towards writing skill . Jakarta: Pusat Penelitian Bidang Bahasa dan Seni LPPM Universitas Indraprasta PGRI.

Gaya MLA

Wilson, Agus. "The effects of vocabulary mastery and student's perception of teaching material towards writing skill". Jakarta: Pusat Penelitian Bidang Bahasa dan Seni LPPM Universitas Indraprasta PGRI, 2015. Text.