Gaya APA

Martin, C. (2005). Tough management : the 7 winning ways to make tough decisions easier, deliver the numbers, and grow the business in good times and bad . New York: McGraw-Hill.

Gaya MLA

Martin, Chuck. "Tough management : the 7 winning ways to make tough decisions easier, deliver the numbers, and grow the business in good times and bad". New York: McGraw-Hill, 2005. Buku/Printed Material.