APA Style

Indonesia, D, K, Y, P, L, R, I. (2013). Natural Science Student`s Workbook Elementary 1 . Surabaya: Yayasan Pendidikan Logos Reformed Injili.

MLA Style

Indonesia, Departemen, Kurikulum, Yayasan, Pendidikan, Logos, Reformed, Injili. "Natural Science Student`s Workbook Elementary 1". Surabaya: Yayasan Pendidikan Logos Reformed Injili, 2013. Text.