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_a547.84 _bOPE _223 |
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| 100 | _aOPEN University of Sri Lanka | ||
| 100 | _aKularatne, K.W.S. | ||
| 245 |
_aCourse of study leading to the degree of bachelor of science level 5 PSU 3122: pymers / _cby K.W.S.Kularatne; edited by S.Abeysinghe |
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| 260 |
_aNugegoda _bThe Open University of Sri Lanka _c1991 |
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| 300 | _a44 p. | ||
| 700 |
_9118487 _aAbeysinghe, S. _eedt |
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| 942 | _cPR | ||