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  1. 161
    විද්‍යා ගුරුවරයා : 8 ‌‌‌ශ්‍රේණිය

    විද්‍යා ගුරුවරයා : 8 ‌‌‌ශ්‍රේණිය
    Vidya guruvaraya : ata shreniya.
    by කීර්තිසිංහ, ජනක

    Published 2018
    Subjects: “…14474 Science - Education…”
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  2. 162
    ආලෝක අරුමය

    ආලෝක අරුමය
    Aloka arumaya
    by ෆලඩ්, ඩබ්ලිව්. ඊ.

    Published 1961
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  3. 163
    විදු තරණ විද්‍යා සංකල්ප සාධන සංග්‍රහය - 10 ශ්‍රේණිය : අ.පො.ස. (සාපෙළ) විද්‍යා විෂය ප්‍රතිඵල සංවර්ධන වැඩසටහන.

    විදු තරණ විද්‍යා සංකල්ප සාධන සංග්‍රහය - 10 ශ්‍රේණිය : අ.පො.ස. (සාපෙළ) විද්‍යා විෂය ප්‍රතිඵල සංවර්ධන වැඩසටහන....
    Vidu Tharana vidya sankalpa sadana sangrahaya - 10 shreniya
    by ප්‍රනාන්දු, කේ. ඒ. සී

    Subjects: “…25893 Science - Education…”
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  4. 164
    තොරතුරු හා සන්නිවේදන තාක්ෂණය : 8 ශ්‍රේණිය වැඩ පොත.

    තොරතුරු හා සන්නිවේදන තාක්ෂණය : 8 ශ්‍රේණිය වැඩ පොත.
    Thorathuru ha sannivedana thakshanaya : 8 shreniya veda potha

    Published 2018
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  5. 165
    තොරතුරු හා සන්නිවේදන තාක්ෂණය : 8 ශ්‍රේණිය වැඩ පොත.

    තොරතුරු හා සන්නිවේදන තාක්ෂණය : 8 ශ්‍රේණිය වැඩ පොත.
    Thorathuru ha sannivedana thakshanaya : 8 shreniya veda potha

    Published 2018
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  6. 166
    Honey production in Sri Lanka

    Honey production in Sri Lanka by Fernando, E. F. W.

    Published 1986
    “…Science Education Series…”
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  7. 167
    Industries based on alcholic fermentation in Sri Lanka

    Industries based on alcholic fermentation in Sri Lanka by Samarajeewa, Upali

    Published 1986
    “…Science Education Series…”
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  8. 168
    Limestone resources of Sri Lanka

    Limestone resources of Sri Lanka by Abeysinghe, Ranjan

    “…Science Education Series…”
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  9. 169
    Mineral based idustries of sri Lanka

    Mineral based idustries of sri Lanka by Herath, Mahinda

    Published 1986
    “…Science Education Series…”
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  10. 170
    Mineral nutrition of plants

    Mineral nutrition of plants by De Silva, M.C.W Prabhath

    “…Science Education Series…”
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  11. 171
    Mutations and enviromental mutagens

    Mutations and enviromental mutagens by Ratnayake, Winston E.

    Published 1983
    “…Science Education Series…”
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  12. 172
    Physiology of clothing

    Physiology of clothing by Basnayake, V.

    “…Science Education Series…”
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  13. 173
    Rocks and minerals

    Rocks and minerals by Kumaragamage, Darshani

    Published 1986
    “…Science Education Serise…”
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  14. 174
    The scattering of light sansets and air pollution

    The scattering of light sansets and air pollution by Dissanaike, George A.

    “…Science Education Series…”
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  15. 175
    Use of fertilizers and manures in Sri Lanka

    Use of fertilizers and manures in Sri Lanka by Thenabadu, Mervyn W.

    “…Science Education Series…”
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  16. 176
    Food Spoilage and food preservation in Sri Lanka

    Food Spoilage and food preservation in Sri Lanka by Pulle, Mervyn W.

    “…Science Education Series…”
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  17. 177
    Forestry

    Forestry by De S. Wijesinghe, L. C. A.

    “…Science Education Series…”
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  18. 178
    The Graphite industry in Sri Lanka

    The Graphite industry in Sri Lanka by Wijayananda, N. P.

    Published 1987
    “…Science education series ; no 24…”
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  19. 179
    Honey Production in Sri Lanka

    Honey Production in Sri Lanka by Fernando, E. P. W.

    Published 1986
    “…Science education series ; 20…”
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  20. 180
    Limestone resources of Sri Lanka

    Limestone resources of Sri Lanka by Abeysinghe, Viraj Sans

    Published 1990
    “…Science education series; No. 23…”
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