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Volume 18 (1990): Issue 1 (Jan 1990)

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Journal of the National Science Foundation of Sri Lanka
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Issue 2
Issue 1

9 articles
Open Access
|Mar 1990
A man’s role in the degradation of soil and water resources in Sri Lanka: a historical perspective
  
Open Access
|Mar 1990
An evaluation of the numerical criterion for "positive" with skin tests using Mycobacterium leprae antigens
,  ,  ,   and    
Open Access
|Mar 1990
Pod yield of winged bean after chemical treatment for Choanephora blight disease
 and    
Open Access
|Mar 1990
The distribution of the paddy nematode, Hirschmanniella oryzae in Sri Lanka
 and    
Open Access
|Mar 1990
Efficiency of the main fishing gears used in prawn fishery in the Jaffna lagoon
  
Open Access
|Mar 1990
Antimotility effects of Piper betele (L.) leaf extract on washed human spermatozoa
,   and    
Open Access
|Mar 1990
A study to determine factors which could influence the population of the ecto-commensal temnocephalid Paracaridinicola platei (Fernando, 1952) baer, 1953
  
Open Access
|Mar 1990
Biological activity of some steam distillates from leaves of ten species of Rutaceous plants
,  ,  ,  ,  ,  ,   and    
Open Access
|Mar 1990
Survey of some rice insect pests and their predators in three districts of Sri Lanka
 and    
eISSN: 2362-0161|Language: English
Website: https://jnsfsl.sljol.info
Published by: National Science Foundation of Sri Lanka
In partnership with: Paradigm Publishing Services
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