Coelho, Denis A. (2011). "A study on the relation between manufacturing strategy, company size, country culture and product and process innovation in Europe". International Journal of Business and Globalisation. 7 (2): 152. doi:10.1504/ijbg.2011.041830. ISSN1753-3627.
Minkov, Michael (2007). What makes us different and similar: A new interpretation of the World Values Survey and other cross-cultural data. Sofia, Bulgaria: Klasika y Stil Publishing House. ISBN978-954-327-023-1. Diarkibkan 23 November 2010 di Wayback Machine
Coelho, Denis A. (2011). "A study on the relation between manufacturing strategy, company size, country culture and product and process innovation in Europe". International Journal of Business and Globalisation. 7 (2): 152. doi:10.1504/ijbg.2011.041830. ISSN1753-3627.