Gaya APA
Sulistyo, U., Setyarini, S. (2007).
Succesful English For Business:Develop your Speaking Skill in the Business .
Yogyakarta:
Andi.
Gaya MLA
Sulistyo, Ule., Setyarini, Susana.
"Succesful English For Business:Develop your Speaking Skill in the Business".
Yogyakarta:
Andi,
2007.
Text.