Gaya APA
Purnomo, E.
(1995).
First step 1&2 : an English book for elementary schools
.
Jakarta:
Intan Pariwara.
Gaya MLA
Purnomo, Edy.
"First step 1&2 : an English book for elementary schools".
Jakarta:
Intan Pariwara,
1995.
Sound Recording.