Gaya APA

Lawson, Ken. (2009). Successful Negotiating . London: New Holland Publishers.

Gaya Chicago

Lawson, Ken. Successful Negotiating. London: New Holland Publishers, 2009. Media Cetak.

Gaya MLA

Lawson, Ken. Successful Negotiating. London: New Holland Publishers, 2009. Media Cetak.

Gaya Turabian

Lawson, Ken. Successful Negotiating. London: New Holland Publishers, 2009. Media Cetak.