https://dr.ddn.upes.ac.in//xmlui/handle/123456789/3319 Thu, 14 May 2026 03:05:43 GMT 2026-05-14T03:05:43Z https://dr.ddn.upes.ac.in//xmlui/handle/123456789/3320 QP SOHS Dec 2019 Sun, 01 Dec 2019 00:00:00 GMT https://dr.ddn.upes.ac.in//xmlui/handle/123456789/3320 2019-12-01T00:00:00Z