"தேசிய இன்றியமையா கழகம்". The Institute for Studies in Industrial Development (ISID). Archived from the original on 2009-03-09. Retrieved 2009-01-20. {{cite web}}: Unknown parameter |= ignored (help)
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"தேசிய இன்றியமையா கழகம்". The Institute for Studies in Industrial Development (ISID). Archived from the original on 2009-03-09. Retrieved 2009-01-20. {{cite web}}: Unknown parameter |= ignored (help)