APA Style

,M.Si, N. (2011). The effect of comunicative approach on the students' achievement in learning english genitive case at the eighth year students of SMP Kristen Dorkas Lasem . Tuban: Unirow.

MLA Style

,M.Si, Nurdin. "The effect of comunicative approach on the students' achievement in learning english genitive case at the eighth year students of SMP Kristen Dorkas Lasem". Tuban: Unirow, 2011. e-book.