Asian Development Bank. (2011). A handbook on using the mixed survey for measuring informal employment and the informal sector. Asian Development Bank.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Asian Development Bank. A Handbook on Using the Mixed Survey for Measuring Informal Employment and the Informal Sector. Metro Manila, Philippines: Asian Development Bank, 2011.
MLA -ийн эшлэл (9 дэх хэвлэлт)Asian Development Bank. A Handbook on Using the Mixed Survey for Measuring Informal Employment and the Informal Sector. Asian Development Bank, 2011.
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