Gaya APA

pertiwi, S, R, I. (2016). The Effectiveness Of Picture Series To Improve The Eighth Grade Studens Writing Ability In Recount Text At SMP Negeri 4 Sidoarjo . Sidoarjo: Perpustakaan UMSIDA.

Gaya MLA

pertiwi, Shinta, Ragil, Indah. "The Effectiveness Of Picture Series To Improve The Eighth Grade Studens Writing Ability In Recount Text At SMP Negeri 4 Sidoarjo". Sidoarjo: Perpustakaan UMSIDA, 2016. .