Department of Scince විද්යුත් චුම්බක ප්රේරණය: - Department of Scince: Maharagama; 2019. - 21p ; 24 cm. 01 - 2024-03-22 Nat. Bib. No.: 0008144 Nat. Bib. Agency Control No.: SCI Universal Decimal Class. No.: 540