Jayathilaka, K.M.D.S SMOOTH JOINTS - Lakva Prakashana Pannipitiya 2002 - 120p 1 - 2023-11-08 ISBN: 955-97779-0-1 Nat. Bib. No.: 0005961 Nat. Bib. Agency Control No.: JAY Universal Decimal Class. No.: 511.6