Gaya APA
Sitanggang, L, M. (2009).
Forex: Virtual trading real income Psycho on trading/Licius M.Sitanggang .
Yogyakarta:
Andi Offset.
Gaya MLA
Sitanggang, Licius, M..
"Forex: Virtual trading real income Psycho on trading/Licius M.Sitanggang".
Yogyakarta:
Andi Offset,
2009.
Text.