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21.
Lightning and thundering (in Sinhala) by Series: Science Education Series ; No.21
Language:
Publication details: NARESA Colombo ; 1985
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

22.
The oceans in our future by Series: Science Education Series ; No.22
Language:
Publication details: NARESA Colombo ; 1984
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

23.
Limestone resources of Sri Lanka by Series: Science Education Series ; No.23
Language:
Publication details: NARESA Colombo
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

24.
The graphite industry in Sri Lanka by Series: Science Education Series ; No.24
Language:
Publication details: NARESA Colombo ; 1987
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

25.
Night Sky (in Sinhala) by Series: Science Education Series ; No.25
Language:
Publication details: NARESA Colombo
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

26.
Cosmetics (in Sinhala) - Document not available by Series: Science Education Series ; No.26
Language:
Publication details: NARESA Colombo
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

27.
Lime industry in Sri Lanka (in Sinhala) by Series: Science Education Series ; No.27
Language:
Publication details: NARESA Colombo
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

28.
Soil and soil conservation in Sri Lanka by Series: Science Education Series ; No.28
Language:
Publication details: NARESA Colombo ; 1988
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

29.
Diseases and parasites of domesticated animals in Sri Lanka by Series: Science Education Series ; No.29
Language:
Publication details: NARESA Colombo
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

30.
Paddy pests in Sri Lanka by Series: Science Education Series ; No.30
Language:
Publication details: NARESA Colombo ; 1992
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

31.
The Sri Lanka water buffalo by Series: Science Education Series ; No.31
Language:
Publication details: NARESA Colombo
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

32.
Building materials in Sri Lanka by Series: Science Education Series ; No.32
Language:
Publication details: NARESA Colombo ; 1993
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

33.
Environmental Problems (in sinhala) by Series: Science Education Series ; No.33
Language:
Publication details: NARESA Colombo
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

34.
Natural Rubber (in sinhala) by Series: Science Education Series ; No.34
Language:
Publication details: NARESA Colombo ; 1990
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

35.
Growth and problems of world population and Sri Lanka (in Sinhala) by Series: Science Education Series ; No.35
Language:
Publication details: NARESA Colombo ; 1991
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

36.
Scientific Principles seen in ancient artefacts and monumental structures by Series: Science Education Series ; No.36
Language:
Publication details: NARESA Colombo ; 1995
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

37.
Sri Lankawe Mee Gavaya by Series: Science Education Series ; No.31
Language:
Publication details: NARESA Colombo
Availability: Items available for reference: National Science Library & Resource Center: Staff collection (1).

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