Gaya APA
Royan, F, M. (2009).
Account Receivable Sales Force = Cara Cerdas mengelola piutang penjualan (AR) sales force .
Jakarta:
ELex Media Komputindo.
Gaya MLA
Royan, Frans, M..
"Account Receivable Sales Force = Cara Cerdas mengelola piutang penjualan (AR) sales force".
Jakarta:
ELex Media Komputindo,
2009.
Book.