o:resource_class url dcterms:title dcterms:creator dcterms:description dcterms:contributor dcterms:date dcterms:type dcterms:format dcterms:language dcterms:coverage dcterms:rights bibo:AudioVisualDocument https://saptarshi.in/dms/s/iksnb/item/84 Lepcha Community Video 20 Saptarshi Ghosh lepcha Community Video 20 NBU 13-08-2026 video/mp12 xsr lepcha