Core. (n.d.). About Core. Retrieved February 27, 2018 from https://core.ac.uk/
Education Resources Information Center. (n.d.). 50 years of ERIC. Retrieved February 27, 2018
from https://eric.ed.gov/pdf/ERIC_Retrospective.pdf .
Hazra, U. K. and Das, R. (2018). Evaluation of online learning repositories: a comparative study. DESIDOC Journal of Library and Information Technology, 38(4), 259-265. DOI: 10.14429/djlit.38.4.12711.
Mukhopadhyay, P. S. (2013). Courseware on Library Information Technology.
Kolkata: Prova Prokashani. p. 216-218
Mukhopadhyay, P.S. (2007). Parameters for evaluation of Databases [Class handout].
The University of Burdwan, Burdwan, West Bengal.
Pdf Drive.(n.d.). About PdfDrive. Retrieved February 27, 2018 from
Wikis. (n.d.). CORE. Retrieved February 28, 2018 from
Wikis. (n.d.). Online Search. Retrieved February 27, 2018 from
Wikis. (n.d.). Project Gutenberg Retrieved February 27, 2018 from
There are so many databases in the world for retrieval of information from e-resources. This research paper analyses ERIC, CORE, PDF Drive and Project Gutenberg for retrieval of e-resources. Here everything was analyzed on the basis of some observation and collected data were tabulated for analysis. This paper includes brief description about ERIC, CORE, PDF Drive and Project Gutenberg and screenshots of normal search, advanced search and use of fuzzy logic. This research reflects that none of the databases under study achieved full score found that ERIC ranked the first position.