'What is meant by business relationships?' (Management of Technology, 2009), 'How to Build Successful Business Relationships', Chap. 1, pp. 1-14, DOI: 10.1049/PBMT027E_ch1
IET Digital Library, https://digital-library.theiet.org/;jsessionid=1bk58vqjfph1p.x-iet-live-01content/books/10.1049/pbmt027e_ch1