Gaya APA
Soegoto, D, I, E, S. (2008).
Marketing research : the smart way to solve a problem .
Jakarta:
Kompas gramedia.
Gaya MLA
Soegoto, Dr., Ir., Eddy, Soeryanto.
"Marketing research : the smart way to solve a problem".
Jakarta:
Kompas gramedia,
2008.
Text.