Khoo, A. (2011). Secrets of building multi-million dollar businesses. Elex Media Komputindo.
Čikaški stil citiranja (17. izdanje)Khoo, Adam. Secrets of Building Multi-million Dollar Businesses. Elex Media Komputindo, 2011.
MLA način citiranja (8. izdanje)Khoo, Adam. Secrets of Building Multi-million Dollar Businesses. Elex Media Komputindo, 2011.
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