A study on the effectiveness of Science magazine distributed by National Science foundation for popularization of science among the school children special reference to Colombo district
A study on the effectiveness of Science magazine distributed by National Science foundation for popularization of science among the school children special reference to Colombo district
Sapumohotti, S.N.P.K.
- 2016.
- ix,70p.:
Sudasinghe, S.R.S.N., & Wattewidanage, J.
MPM/T/392
Sudasinghe, S.R.S.N., & Wattewidanage, J.
MPM/T/392
