Brunetti, A., Weder, B., Kisunko, G., & World Bank Office of the Senior Vice President and Chief Economist, D. E. (1997). Institutional obstacles to doing business: Region-by-region results from a worldwide survey of the private sector. World Bank, Office of the Chief Economist and Senior Vice President, Development Economics.

Brunetti, Aymo, Beatrice Weder, Gregory Kisunko, and Development Economics World Bank Office of the Senior Vice President and Chief Economist. Institutional Obstacles to Doing Business: Region-by-region Results from a Worldwide Survey of the Private Sector. Washington, DC: World Bank, Office of the Chief Economist and Senior Vice President, Development Economics, 1997.

Brunetti, Aymo, et al. Institutional Obstacles to Doing Business: Region-by-region Results from a Worldwide Survey of the Private Sector. World Bank, Office of the Chief Economist and Senior Vice President, Development Economics, 1997.