Perera, Rohan T.P විද්යුත් රසායනය A/L - Sarasvi Publisher Nugegoda 2019 - 112p 1 - 2023-11-23 ISBN: 978-955-31-1784-7 Nat. Bib. No.: 0007978 Nat. Bib. Agency Control No.: PER Universal Decimal Class. No.: 530