Gaya APA
Thight, B, H, D.
(2006).
How To Research
(
2)
.
JAKARTA:
Indeks Kelompok Gramedia.
Gaya MLA
Thight, Blaxter., Hunghes, Dan.
"How To Research".
2
JAKARTA:
Indeks Kelompok Gramedia,
2006.
Text.