Sri Lanka. Dept. of Census & Statistics
Sri Lanka. Sălasum Kriyātmaka Kirīmē Amātyāmśaya. Janalēkhana hā Saṇkhyālēkhana Depārtamēntuva
Sri Lanka. Dept. of Census and Statistics
Sri Lanka. Department of Census and Statistics
Sri Lanka. Census and Statistics, Dept. of
Sri Lanka. Census & Statistics, Dept. of