Gaya APA
Thomson, P., , . (1997).
Sell your way to the top, how you can sell more of everything menjual ìdengan gemilang .
Jkarta:
.
Gaya MLA
Thomson, Peter., , .
"Sell your way to the top, how you can sell more of everything menjual ìdengan gemilang".
Jkarta:
,
1997.
Text.