Gaya APA
Sell, C., Key, S.
(2013).
One Simple Idea for Startup and Enterpreneurs
.
Palangkaraya:
McGRAW HILL _2.
Gaya MLA
Sell, Collen., Key, Stephen.
"One Simple Idea for Startup and Enterpreneurs".
Palangkaraya:
McGRAW HILL _2,
2013.
Buku Teks.