About this document
Unit 3a by Avilash kumar singh is a document available to read on EtoBox.
The document outlines the types and uses of information sources, categorizing them into documentary and non-documentary sources, with further subdivisions into primary, secondary, and tertiary sources. It emphasizes the importance of these sources for research, avoiding duplication, and providing necessary background information. Additionally, it discusses the roles of various identification systems like ISSN, ISBN, and ISNI in managing and accessing information effectively.
- Author
- Avilash kumar singh
- Language
- EN