International Labour Organization. (2013). The Informal economy and decent work: A policy resource guide supporting transitions to formality. International Labour Organization.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)International Labour Organization. The Informal Economy and Decent Work: A Policy Resource Guide Supporting Transitions to Formality. Geneva, Switzerland: International Labour Organization, 2013.
MLA -ийн эшлэл (9 дэх хэвлэлт)International Labour Organization. The Informal Economy and Decent Work: A Policy Resource Guide Supporting Transitions to Formality. International Labour Organization, 2013.
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