Goetz, S.J., & Shrestha, S.S. (2009). Explaining self-employment success and failure: Wal-Mart versus Starbucks, or
Shrumpeter versus Putnam. Social Science Quarterly, 90(1), 22-38. doi:10.1111/j.1540-6237.2009.00600.x
Menesini, E., Melan, E., and Pignatti, B. (2000). Interactional styles of bullies and victims obesrved in a competitive and
cooperative setting. Journal of Genetic Psychology, 161(3), 261-. Retrieved from http://www.ebsco.com