context: But Lax's primary contributions to the negotiation literature come from his two books with Professor Sebenius.
source: The Manager as Negotiator made a number of contributions to the field of negotiation.
reference_original: قدّم المدير كمفاوض العديد من المساهمات في مجال التفاوض.
reference_flipped: قدّمت المديرة كمفاوضة العديد من المساهمات في مجال التفاوض.