Gaya APA

1805110318, M, B, S, /. (2023). The Effect Of Duolingo Application On The Vocabulary Mastery Of The Eleventh Grade Students Of SMA Negeri 1 Tapung Hulu . Pekanbaru: Universitas Riau – Fkip – Pendidikan Bahasa Inggris.

Gaya MLA

1805110318, MEGASARI, BR, SIREGAR, /. "The Effect Of Duolingo Application On The Vocabulary Mastery Of The Eleventh Grade Students Of SMA Negeri 1 Tapung Hulu". Pekanbaru: Universitas Riau – Fkip – Pendidikan Bahasa Inggris, 2023. CD Skripsi.