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<html> <body> <a href="https://open.umn.edu/opentextbooks">Open Textbook Library</a></body></html> Open textbooks are licensed by authors and publishers to be freely used and adapted. Download, edit and distribute them at no cost. http://dspace.unitywomenscollege.ac.in/xmlui/handle/123456789/1502 2026-05-25T14:16:59Z 2026-05-25T14:16:59Z