Informal sector (Economics) -- Cross-cultural studies. : Size, causes and consequences of the underground economy : an international perspective / edited by Christopher Bajada, Friedrich Schneider. [O'Reilly electronic resource]
Informal sector (Economics) -- Russia (Federation) : The role of informal economies in the post-Soviet world : the end of transition? / Colin C. Williams, John Round, Peter Rodgers. [O'Reilly electronic resource]
2013
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Informal sector (Economics) -- Ukraine. : The role of informal economies in the post-Soviet world : the end of transition? / Colin C. Williams, John Round, Peter Rodgers. [O'Reilly electronic resource]