Gaya APA
GARTSIDE, L.. (1981).
Model Business Letters (3).
s.l.:
SEKJEN MPR RI.
Gaya Chicago
GARTSIDE, L..
Model Business Letters .
3
s.l.:
SEKJEN MPR RI,
1981.
TANDON.
Gaya MLA
GARTSIDE, L..
Model Business Letters .
3
s.l.:
SEKJEN MPR RI,
1981.
TANDON.
Gaya Turabian
GARTSIDE, L..
Model Business Letters .
3
s.l.:
SEKJEN MPR RI,
1981.
TANDON.