Gaya APA
Irianto, A. (2006).
Born to win sukses menjual steps to be a sales master .
Jakarta:
PT.Gramedia pustaka utama.
Gaya MLA
Irianto, Anton.
"Born to win sukses menjual steps to be a sales master".
Jakarta:
PT.Gramedia pustaka utama,
2006.
Manajemen Administrasi D3.