Dr. S. R. Ranganathan Online Lecture Series http://idr.aus.ac.in/jspui/handle/21011994/351 2026-01-28T12:47:21Z One Week Dr. S. R. Ranganathan Online Lecture Series http://idr.aus.ac.in/jspui/handle/21011994/352 One Week Dr. S. R. Ranganathan Online Lecture Series 2020-01-01T00:00:00Z