Gaya APA
SONDAK, Piet. (2004).
English for special purpose: salespersons .
Jakarta:
Kesain Blanc.
Gaya Chicago
SONDAK, Piet.
English for special purpose: salespersons.
Jakarta:
Kesain Blanc,
2004.
Text.
Gaya MLA
SONDAK, Piet.
English for special purpose: salespersons.
Jakarta:
Kesain Blanc,
2004.
Text.
Gaya Turabian
SONDAK, Piet.
English for special purpose: salespersons.
Jakarta:
Kesain Blanc,
2004.
Print.