Gaya APA
Pramono, P, R., Sulistyo, U.
(2007).
5 GIANT STEPS TO SUCCESSFUL BUSINEES WRITING
.
Yogyakarta:
Andi Offset.
Gaya MLA
Pramono, Peni, R.., Sulistyo, Ule.
"5 GIANT STEPS TO SUCCESSFUL BUSINEES WRITING".
Yogyakarta:
Andi Offset,
2007.
Text.