Gaya APA

Panigoro, A. (2008). Doing business is not easy: Arifin Panigoro's experience and thoughts . : Medco Agro.

Gaya MLA

Panigoro, Arifin. "Doing business is not easy: Arifin Panigoro's experience and thoughts". : Medco Agro, 2008. Buku Cetak.