Gaya APA
Pramono, P, R., sudiyarto, O, H.
(2006).
30 Menit Essay Writing, Writing is Easy
.
Gorontalo:
ANDI.
Gaya MLA
Pramono, Peni, R.., sudiyarto, Oktaviani, Hastu.
"30 Menit Essay Writing, Writing is Easy".
Gorontalo:
ANDI,
2006.
Text.