Common Vegetables of Sri ...
Tissa R. Herat, ...
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The Sri Lanka Water Buffa ...
B.M.A.O. Perera ...
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Mineral Based Industries ...
J.W. Herath
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Freshwater Fauna and Fish ...
C.H. Fernando
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Limestone Resources of Sr ...
P.B. Abeysinghe
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Evolution and the Geologi ...
Jinadasa Katupo ...
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Soil and Soil Conservatio ...
Mervyn W. Thena ...
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Use of Potash Fertilizer ...
U. Pethiyagoda
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The Granulite Facies in S ...
D.J.A.C. Hapuar ...
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A Hand Book to the Fungi ...
Umarany Coomara ...
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The World's True Welfare ...
Vidagama Maitre ...
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Energy Resources in Sri L ...
J.W. Herath, K. ...
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Compensation and Reparati ...
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The Hydrogeochemical Atla ...
C.B. Dissanayak ...
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Policies and Their Implic ...
Roshen Epaarach ...
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