Nilmini Abeydeera Advanced Level Statics - samudra publisher Colombo 2019 - 321p 1 - 2023-11-22 ISBN: 978-955-680-892-6 Nat. Bib. No.: 0007854 Nat. Bib. Agency Control No.: ABE Subjects--Topical Terms: Mathematics (AL) Universal Decimal Class. No.: 510