The following are important databases for secondary sources.
The book titles are full-length, searchable, and have been recommended and reviewed by scholars. Contains works of significance to their field useful resources for scholars and students.
The Philosophy Documentation Center’s E-Collection contains over 200 scholarly journals, book series, conference proceedings, and other publications in philosophy, applied ethics, and religious studies. Coverage of most titles is complete—all issues, all volumes.
Text is displayed in PDF or HTML formats, and all text is fully searchable.
Official digital archive of the Library of Congress and the database of record for graduate research. Search citations to dissertations and theses from around the world from 1861 to present day, and access full text dissertations.