Tham khảo Bán hàng phức tạp

  1. ↑ Thull, J. (2010). Mastering the Complex Sale: How to Compete and Win When the Stakes are High!. Hoboken: John Wiley & Sons.
  2. ↑ Hyams, R. M. and Eppler, M. J. (2014). Information Quality in Complex Sales. In: International Conference on Information Quality. Ninth International Conference on Information Quality (ICIQ-04). Cambridge, USA, Nov. 5-7, 2004. Cambridge: MIT.
  3. ↑ Dixon, M and Adamson, B. (2011). Selling Is Not About Relationships. Harvard Business Review. [online] Available at: https://hbr.org/2011/09/selling-is-not-about-relatio [Accessed ngày 1 tháng 5 năm 2017].