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Census of population : POPCEN
(1996)
2015 population and housing by-census of Mongolia: national report
(2016)
Ḩajati millī, donistani zabonḩo zaḩrvandii aḩolii ǵumḩurii Toǵikiston
(2012)
Selected socio-economic indicators
(2006)
Living conditions monitoring survey report
Zambia demographic and health survey
(1993)