1. Bell, J. S., & Loukaitou-Sideris, A. (2014). Sidewalk informality: An examination of street vending regulation in China. International Planning Studies, 19(3–4), 221–243.
2. Bromley, R. (2000). Street vending and public policy: A global review. International Journal of Sociology and Social Policy, 20(1/2), 1–28.
3. Chen, M.A. , Bonner, C., Tang, E., Pape, K., Sinha, S., Roever, S., Skinner, C., & Dias, S. (2015). Myths & facts about the informal economy and workers in the informal economy. Published by Women in Informal Employment: Globalizing and Organizing (WIEGO).
4. Chen, M. A. (2012). The informal economy: Definitions, theories and policies (Vol. 1, No. 26, pp. 90141–4). working paper from the organization of Women in Informal Employment: Globalizing and Organizing.
5. Chen, M. A. (2005). Rethinking the informal economy: Linkages with the formal economy and the formal regulatory environment (Vol. 10, pp. 18–27). United Nations University, World Institute for Development Economics Research.