Gaya APA
Shanker, .
(1995).
250 Complete Letter Writer
(
Edisi I)
.
Singapore:
S.S Mubaruk & Brothers Pte Ltd.
Gaya MLA
Shanker, .
"250 Complete Letter Writer".
Edisi I
Singapore:
S.S Mubaruk & Brothers Pte Ltd,
1995.
Text.