Roychowdhury, Punarjit (2011): Regulation, enforcement and informality: an analysis based on selected countries. Unpublished.
Roychowdhury, Punarjit and Dutta, Mousumi (2011): Regulation, enforcement and informality: an analysis based on selected countries. Unpublished.
Roychowdhury, Punarjit and Dutta, Mousumi (2011): Regulation, governance and informality: an empirical analysis of selected countries. Unpublished.
Marjit, Sugata and Roychowdhury, Punarjit (2011): Status, Poverty and Trade. Unpublished.