Gaya APA

1405119186, H, F, /. (2018). An Analysis Of Grammatical Errors Made By The Third Year Students Of English Study Program Universitas Riau In Writing An Argumentative Essay . Pekanbaru: Universitas Riau - FKIP – Pendidikan Bahasa Inggris.

Gaya MLA

1405119186, HIBBAN, FIRMAN, /. "An Analysis Of Grammatical Errors Made By The Third Year Students Of English Study Program Universitas Riau In Writing An Argumentative Essay". Pekanbaru: Universitas Riau - FKIP – Pendidikan Bahasa Inggris, 2018. CD Skripsi.