| 000 | 00574nam a2200181Ia 4500 | ||
|---|---|---|---|
| 999 |
_c60387 _d60387 |
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| 005 | 20230608093354.0 | ||
| 008 | 180710s9999 xx 000 0 und d | ||
| 020 | _a141617 | ||
| 082 |
_a547 _bOPE _223 |
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| 100 | _aOPEN University of Sri Lanka | ||
| 100 | _aAbeysekera, A,M. | ||
| 100 | _aKarunatilaka, S. | ||
| 245 |
_aCourse of study leading to the degree of bachelor of science level 4, PSU 2114-o _c/by A.M.Abeysekera, S.Karunatilaka |
||
| 260 |
_aNugegoda _bThe Open Univeristy of Sri Lanka _c1986 |
||
| 300 | _a161 p. | ||
| 500 | _aIncludes glossary. | ||
| 942 | _cR | ||