Gaya APA

Foster, G. (2007). The Power of positive profit : how you can improve any bottom line in sale, marketing, and management with moneymath / Graham Foster . New Jersey: John Wiley \r Sons.

Gaya MLA

Foster, Graham. "The Power of positive profit : how you can improve any bottom line in sale, marketing, and management with moneymath / Graham Foster". New Jersey: John Wiley \r Sons, 2007. Buku.