Department,Eductional Publication ඉංජිනේරු තාක්ෂණවේදය 2 කොටස Basic Automatic Technology - Educational Publishing Department Baththaramulla 2014 - 168p 1 - 2023-11-21 Nat. Bib. No.: 0006553 Nat. Bib. Agency Control No.: DEP Universal Decimal Class. No.: 620