Gaya APA

Panigoro, A. (2008). Doing business is not easy : Arifin Panigoro's experience and thoughts (4th ed.). Jakarta: Medco Foundation.

Gaya MLA

Panigoro, Arifin. "Doing business is not easy : Arifin Panigoro's experience and thoughts". 4th ed. Jakarta: Medco Foundation, 2008. Buku/Printed Material.