CREATE TABLE table_19358 ("Number" FLOAT, "Name of administrative unit" CLOB, "Telephone  ( 052 ) " CLOB, "Area  ( km 2  ) " CLOB, "Population  ( people ) " FLOAT)

Name the telephone 052 for area km2 being 5.42
SELECT "Telephone (052)" FROM table_19358 WHERE "Area (km 2 )" = '5.42'
SELECT "Telephone (052)" FROM "table_19358" WHERE "Area (km 2 )" = '5.42'