Grade 11
Science
Rajarata Gurugedara
පරිසර දූෂණයේ වක්ර බලපෑම් Science — Lesson 8
Sinhala-medium audio lesson from Rajarata Gurugedara. Lesson 8 of 9
00:00
48:57
Source and credit
Originally broadcast by Rajarata Gurugedara, North Central Provincial Department of Education.
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