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1.	Image from Google Jackets	Transfer and development of appropriate technology in the less developed countries by Wijesinghe, L.C.A.De.S Language: English Publication details: Colombo : National Science Council of Sri Lanka , 1978 Online resources: Click here to access online Availability: Items available for loan: National Science Library & Resource Centre (1). Place hold Save to lists Add to cart (remove)
2.	Image from Google Jackets	Quantitative study of the direct use of kerosene for lighting in Sri Lanka households by Wijesinghe, L.C.A.de.S Language: English Publication details: Colombo : Natural Resources, Energy & Science Authority of Sri Lanka , Online resources: Click here to access online Availability: Items available for loan: National Science Library & Resource Centre (1). Place hold Save to lists Add to cart (remove)
3.	Image from Google Jackets	Castasia II : Sri Lanka country report by Wijesinghe, L.C.A.De.S [Comp.] De Silva, M.A.T [Comp.] Language: English Publication details: Colombo : National Science Council of Sri Lanka , 1981 Online resources: Click here to access online Availability: Items available for loan: National Science Library & Resource Centre (1). Place hold Save to lists Add to cart (remove)

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