Gaya APA
Nyotoprabowo, O, Y. (2014).
The Biggest Secret To Success In MLM Finally Revealed .
Jakarta:
Gramedia.
Gaya MLA
Nyotoprabowo, Oktavianus, Yudistira.
"The Biggest Secret To Success In MLM Finally Revealed".
Jakarta:
Gramedia,
2014.
Non Fiksi.