ලේසර්: දෝලන හා තරංග

Daya Balo, D.D.N.

ලේසර්: දෝලන හා තරංග = usas peLa Bauthika vidyaava : leesar - leesar kiraNa, Buu kampana tharanga, sunaami, svanika gigurum - Colombo: Author, 2008. - 103p.; 21cm


Laser
Physics

530.33 / DAY

Library Network, National Institute of Education (NIE) Maharagama