Gaya APA

SAFITRI, W, Y. (2007). The Use of pictures to improve elementary school student's vocabulary mastery (a classroom action... . : Universitas Sebelas Maret.

Gaya MLA

SAFITRI, Wulandari, Yunia. "The Use of pictures to improve elementary school student's vocabulary mastery (a classroom action...". : Universitas Sebelas Maret, 2007. Skripsi.