Bloomsbury Reference. (2004). Negoiate Successfully. Bloomsbury Reference: London.

Eunson, B. (1994). Negotiation Skills. John Wiley and Sons: Australia.

Fisher, R. & Ury, W. (1999). Getting to Yes. Random House: London. 

Harvard Business School Press. (2004). Winning Negotiations. Harvard Business School Press: USA.

Reardon, K. K. (2004). The Skilled Negotiator. Josey Bass: Califonia.

Videos
From No to Yes
It's a Deal: Win-Win Negotiatio SKills
The Art of Negotiation

Training Material
Commercial Negotiation