ඔබේ ගමට කුඩා පරිමාණ ජල ශක්තිය සුදුසුද?
Obe gamata kudaa parimana jala shakthiya sudusuda?
- Colombo 3 Intermediate Technology Development Group [n.d.]
- 20p. : ill.
Small Scale Water Power Programme
DAMS-Construction
Hydraulic power plants-Construction
627.8 / O2
Small Scale Water Power Programme
DAMS-Construction
Hydraulic power plants-Construction
627.8 / O2