Gaya APA

Ningrum, A, S, B. (2012). Scaffolding strategy in the process of writing to improve the students' writing ability . Jakarta: Dierjen Pendidikan Tinggi Islam.

Gaya MLA

Ningrum, Ary, Setya, Budhi. "Scaffolding strategy in the process of writing to improve the students' writing ability". Jakarta: Dierjen Pendidikan Tinggi Islam, 2012. Text.