More information on: http://www.muzeumnocniku.cz/en/ Infographic 1: Share of the population having toilets inside the dwellings, statistical regions, administrative units with lowest shares in 1971 and their shares in 2011 Source: SURS Sources and Links: World Toilet Day.
Več informacij najdete na http://www.muzeumnocniku.cz/en/ Infografika 1: Delež prebivalcev s straniščem v stanovanju, upravne enote v posamezni statistični regiji z najnižjimi deleži v letu 1971 in njihovi deleži v letu 2011 Vir: SURS Viri in povezave: World Toilet Day.