Gaya APA
Pramono, P, R.
(2009).
30 Menit Essay Writing, Writing Is Easy
.
Yogyakarta:
Penerbit Andi.
Gaya MLA
Pramono, Peni, R.
"30 Menit Essay Writing, Writing Is Easy".
Yogyakarta:
Penerbit Andi,
2009.
Text.