Gaya APA
El, I, D, ..
(2011).
Mjlti Level Marketing Money Game & Skema Piramid
.
:
Elex Media Komputindo.
Gaya MLA
El, IR.R.Serfianto, D.Purnomo, ..
"Mjlti Level Marketing Money Game & Skema Piramid".
:
Elex Media Komputindo,
2011.
Text.