ਇਇਇ ਇਇਇ ਇਇਇਇ ਇਇਇਇਇਇਇ ਇਇਇਇ 11 ਇਇਇਇਇ 2012
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1. -- 2. Source - http://www.poptens.com/2012/03/19/most-populous-countries/ 3. Source - http://en.wikipedia.org/wiki/List_of_metropolitan_areas_by_population 4. -