Biological discussions for class rooms in Sri Lanka

Basnayake, V.

Biological discussions for class rooms in Sri Lanka - Min.Education Colombo 1974 - 105 lk - Quantitative Data Random Sampling Selective sampling Cross-sectional Surveys Longitudinal Surveys - CAAS School Biology Project . = Basnayake, V.

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P2137

574:32(548.7)BAS


Biological Sciences
Education

574:32(548.7)
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