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.
M
B
P2137
574:32(548.7)BAS
Biological Sciences
Education
574:32(548.7)
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.
M
B
P2137
574:32(548.7)BAS
Biological Sciences
Education
574:32(548.7)