Gaya APA

agustin, N, D. (2016). The Difficulties To Study Vocabulary By Students' For The Tenth Grade OF SMKN 1 Sidoarjo . Sidoarjo: Perpustakaan UMSIDA.

Gaya MLA

agustin, Niken, Dwi. "The Difficulties To Study Vocabulary By Students' For The Tenth Grade OF SMKN 1 Sidoarjo". Sidoarjo: Perpustakaan UMSIDA, 2016. .