Gaya APA
LEECH, G. (1994).
A communicative grammer of english Geoffrey Leech ; Tan Svartvik (Second Ed).
London:
LONGMAN GROUP.
Gaya MLA
LEECH, Geoffrey.
"A communicative grammer of english Geoffrey Leech ; Tan Svartvik".
Second Ed
London:
LONGMAN GROUP,
1994.
UMUM.