DSpace Collection: http://mangaldaicollege.digitallibrary.co.in//handle/123456789/903 Fri, 17 Apr 2026 17:42:04 GMT 2026-04-17T17:42:04Z ECO-HE-5016 http://mangaldaicollege.digitallibrary.co.in//handle/123456789/969 Title: ECO-HE-5016 Sun, 01 Jan 2023 00:00:00 GMT http://mangaldaicollege.digitallibrary.co.in//handle/123456789/969 2023-01-01T00:00:00Z ECO-HE-5026 http://mangaldaicollege.digitallibrary.co.in//handle/123456789/958 Title: ECO-HE-5026 Sun, 01 Jan 2023 00:00:00 GMT http://mangaldaicollege.digitallibrary.co.in//handle/123456789/958 2023-01-01T00:00:00Z ECO-HE-5036 http://mangaldaicollege.digitallibrary.co.in//handle/123456789/904 Title: ECO-HE-5036 Sun, 01 Jan 2023 00:00:00 GMT http://mangaldaicollege.digitallibrary.co.in//handle/123456789/904 2023-01-01T00:00:00Z