Free Journal Link

- https://scholar.google.com

- https://royalsociety.org/search/

- https://www.futuremedicine.com/action/doSearch

- https://www.mdpi.com/search

- https://www.sciencedirect.com/search

- https://pubs.rsc.org

- https://onlinelibrary.wiley.com/action/doSearch

- https://www.nature.com/articles

- https://www.frontiersin.org/articles

- https://espace.library.uq.edu.au/records/search

- https://www.tandfonline.com/action/doSearch

- https://web.archive.org/pdf/search/

* Note: Please filter search into open access journal to download file directly without payment or subscription