Gaya APA
Astuti, E, M.
().
English zone 3 : for senior high school students year xii ktsp 2006
.
Jakarta:
Erlangga.
Gaya MLA
Astuti, Eka, Mulya.
"English zone 3 : for senior high school students year xii ktsp 2006".
Jakarta:
Erlangga,
.
Text.