| 000 | 00641npc a22001697a 4500 | ||
|---|---|---|---|
| 999 |
_c8144 _d8144 |
||
| 003 | KMLcat | ||
| 008 | 190606b xxu||||| |||| 00| 0 eng d | ||
| 041 | _aEng | ||
| 100 |
_aDanthanarayana, N. D. _estu _931270 |
||
| 700 |
_aIlleperuma, D. _esupv _931271 |
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| 245 | _aAwareness on excessive noise exposure , hearing protection and situations, perceived systems of noise exposure among grade 12 students of a selected government school in Colombo district. | ||
| 260 |
_aKelaniya _bUniversity of Kelaniya _c2014 |
||
| 300 |
_avii, 62 p. _c30 cm. |
||
| 500 | _aResearch Project | ||
| 655 |
_aStudent Research Reports _931451 |
||
| 942 |
_2ddc _cRPR |
||