Sharma, S. (1990). Tubewell water quality testingin R & R project area (Eastern Region of Nepal).
Dyfyniad Arddull ChicagoSharma, Sapana. Tubewell Water Quality Testingin R & R Project Area (Eastern Region of Nepal). 1990.
Dyfyniad MLASharma, Sapana. Tubewell Water Quality Testingin R & R Project Area (Eastern Region of Nepal). 1990.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.