Gaya APA

0605134366, A, S, /. (2010). A Study on The Ability of The First Year Students of SMP N 1 Mandau - Duri in Changing Affirmative Sentences into Negative and Introgative . Pekanbaru: Universitas Riau - FKIP - Pendidikan Bahasa Inggris.

Gaya MLA

0605134366, Anita, Srikomalasari, /. "A Study on The Ability of The First Year Students of SMP N 1 Mandau - Duri in Changing Affirmative Sentences into Negative and Introgative". Pekanbaru: Universitas Riau - FKIP - Pendidikan Bahasa Inggris, 2010. CD Skripsi.