Perera,Kulasiri Advanced level physics electricity & magnestism; Volume 1 - Stamford Lake Pannipitiya 2018 - 264p 1 - 2023-11-28 ISBN: 978-955-658-463-9 Nat. Bib. No.: 0009306 Nat. Bib. Agency Control No.: PER Universal Decimal Class. No.: 530