Gaya APA
Masúd, F.
(1998).
Essentials of English Grammar a Practical Guide
(
2)
.
Yogyakarta:
BPFE - Yogyakarta.
Gaya MLA
Masúd, Fuad.
"Essentials of English Grammar a Practical Guide".
2
Yogyakarta:
BPFE - Yogyakarta,
1998.
Text.