Dhanapala,A.H.

ජලය පරිහරණය සංරක්ෂණය හා කළමනාකරණය Sin Sin Jalaya Pariharanaya, sanrakshanaya saha kalamanakaranaya Sin Dhanapala,A.H. - Nugegoda: Sarasavi Prakashakayo, 2021. - 240p.: ill.,Photographs,; 20cm.

9789553122445

577.6 / ධනපා

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