Gaya APA
Ashton, Robert. (2005).
How To Sell .
Jakarta:
Erlangga.
Gaya Chicago
Ashton, Robert.
How To Sell.
Jakarta:
Erlangga,
2005.
Teks.
Gaya MLA
Ashton, Robert.
How To Sell.
Jakarta:
Erlangga,
2005.
Teks.
Gaya Turabian
Ashton, Robert.
How To Sell.
Jakarta:
Erlangga,
2005.
Teks.