1. Ramani G, Kumar V (2008) Interaction orientation and firm performance. J Mark 72(1):27–45
2. Robert L, Vargo S, Brien M (2007) Competing through service: insights from service-dominant logic. J Retail 83(1):5–18
3. Miller L (2012) ASTD 2012 State of the industry report: organizations continue to invest in workplace Learning. ASTD. http://www.astd.org . Accessed 15 May 2012]
4. Greenberg H (2009) Effectively training notes users—a comparison of the end user training options for IBM lotus notes. www.tlc.com . Accessed 12 Apr 2012
5. Rayport J, Jaworski B (2005) Best face forward: why companies must improve their service interfaces with customers. Harvard Business School Press, Boston