Gaya APA
HASTUTI, R, P. (2009).
Improving vocabulary mastery of elementary school students usng flashcards .
:
Universitas Sebelas Maret.
Gaya MLA
HASTUTI, Rina, Puji.
"Improving vocabulary mastery of elementary school students usng flashcards".
:
Universitas Sebelas Maret,
2009.
Skripsi.