"Archived copy"(PDF). www.statistics.gov.lk. Archived from the original(PDF) on 13 November 2012. Retrieved 12 January 2022.{{cite web}}: CS1 maint: archived copy as title (link)
"Archived copy"(PDF). www.statistics.gov.lk. Archived from the original(PDF) on 13 November 2012. Retrieved 12 January 2022.{{cite web}}: CS1 maint: archived copy as title (link)