Tài liệu tham khảo WikiPedia: Visakhapatnam Urban http://www.thehindu.com/news/cities/Visakhapatnam/... http://www.aponline.gov.in/quick%20links/apfactfil... http://censusindia.gov.in/PopulationFinder/Sub_Dis... http://www.censusindia.gov.in/(S(fuvdm1ea5sy5qq55f... http://apland.ap.nic.in/cclaweb/Districts_Alphabet... https://web.archive.org/web/20140419175752/http://... https://web.archive.org/web/20150319222910/http://...
