Gaya APA
Mas\'ud, F.
(1987).
ESSENTIALS OF ENGLISH GRAMMAR a practical guide
(
1)
.
Yogyakarta:
BPFE - YOGYAKARTA.
Gaya MLA
Mas\'ud, Fuad.
"ESSENTIALS OF ENGLISH GRAMMAR a practical guide".
1
Yogyakarta:
BPFE - YOGYAKARTA,
1987.
Text.