Gaya APA
Gusrizal., . (2007).
Let's study bahasa Indonesia with a new method =: Mari belajar bahasa Indonesia (3rd ed., rev.).
io:
.
Gaya MLA
Gusrizal., .
"Let's study bahasa Indonesia with a new method =: Mari belajar bahasa Indonesia".
3rd ed., rev.
io:
,
2007.
print.