පරිසර දුෂණය(parisara dhuShaNaya)

Date

Authors

Karunathilaka, I.M.

Publisher

NARESA:Colombo

Keywords

Citation

Vidurava, 16(3-4):p.17-19

URI

https://viduketha.nsf.gov.lk/handle/123456789/19356

Collections

Vidurva Articles - Sinhala