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035 _a(PTEC-PMB)440e680d99de6173
041 0 _aeng
082 4 _a361
100 1 _aElkington John
245 1 0 _aThe power of unreasonable people : how social entrepreneurs create markets that change the world
653 _a300 វិទ្យាសាស្ត្រសង្គម
942 _cBKEN
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999 _c1239
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