Master guide ඉංජිනේරු තාක්ෂණවේදය A/L - Master Guide Publisher Colombo 2019 - 160p 1 - 2024-02-15 ISBN: 978-955-664-462-3 Nat. Bib. No.: 0006918 Nat. Bib. Agency Control No.: MAS Universal Decimal Class. No.: 620