Gaya APA
Futrell, C, M.
(2002).
Fundamentals of selling: customers for life
(
7th ed.)
.
Boston:
McGraw-Hill.
Gaya MLA
Futrell, Charles, M..
"Fundamentals of selling: customers for life".
7th ed.
Boston:
McGraw-Hill,
2002.
Buku/Printed Material.