| 000 | 00344nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 180613s9999||||xx |||||||||||||| ||und|| | ||
| 041 | _aen | ||
| 082 | _a546 | ||
| 100 | _aDERANIYAGALA, S. | ||
| 245 | 4 | _aThe degree of bachelor of science | |
| 260 |
_aSri lanka _bOpen university of sri laka p _cub 1988 |
||
| 300 | _a82p. | ||
| 942 | _cSR | ||
| 999 |
_c82553 _d82553 |
||