Gaya APA

Ningrum, A, S, B. (2012). Scaffolding strategy in the process of writing to improve the students writing ability (Cet. 1). Jakarta: Kemenang RI Dirjen Pendis.

Gaya MLA

Ningrum, Ary, Setya, Budhi. "Scaffolding strategy in the process of writing to improve the students writing ability". Cet. 1 Jakarta: Kemenang RI Dirjen Pendis, 2012. Text.