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| 020 | _a95595266OX | ||
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_a370.78 _bJAY |
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| 100 | _aJayasooriya, Chandra | ||
| 242 | _aAdyaapana paryeeshana krama shilpi | ||
| 245 | _aඅධ්යාපන පර්යේෂණ ක්රමශිල්පි | ||
| 260 |
_bAuthor, _c1990. _aColombo : |
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| 300 |
_a125p.; _c20cm |
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| 650 | _aEducation Research | ||
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_c68591 _d68591 |
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