Found in articles
asli tanggal 2012-11-04. Diakses tanggal 12 Maret 2013. "The Most Populous Cities in Europe - Top 100". Blatantworld.com. Diarsipkan dari versi asli
Dikshit, Anil Kumar (1 April 2017). "Burden of disease attributed to ambient PM2.5 and PM10 exposure in 190 cities in China". Environmental Science and Pollution
populasi. Metra (kereta komuter) USGS GNIS: City of Chicago "Population Change for the Ten Most Populous and Fastest Growing Metropolitan Statiscal Areas: