Gaya APA
Mas'ud, F.
(2005).
Essentials of English Grammar apractical guide
(
3)
.
Yogyakarta:
BPFE.
Gaya MLA
Mas'ud, Fuad.
"Essentials of English Grammar apractical guide".
3
Yogyakarta:
BPFE,
2005.
Monograf.