CREATE TABLE table_45156 ("Rank" FLOAT, "City" TEXT, "Country" TEXT, "Population" FLOAT, "Area  ( km\\u00b2 ) " FLOAT, "Sources of Pop. / Area" TEXT)

What is the sources for Bandung?
SELECT "Sources of Pop. / Area" FROM table_45156 WHERE "City" = 'bandung'
SELECT "Sources of Pop. / Area" FROM "table_45156" WHERE "City" = 'bandung'