1. Key indicators for Asia and the Pacific;ADB,2011
2. Input–output matrices for Pakistan, 1980–81, Issue 68 of Development Economics Research Centre. Discussion Paper;Ahmad,1985
3. Taxation, public services, and the informal sector in a model of endogenous growth (unpublished, Harvard University);Braun,1993
4. Pakistan's Enduring Agenda for Tax Reforms;Cyan,2013
5. The underground economy and its macroeconomic consequences;Dabla-Norris;Journal of Policy Reform,2005