https://www.crossref.org/

Crossref makes research outputs easy to find, cite, link, assess, and reuse.

 

https://myjurnal.mohe.gov.my/public/browse.php

MyJurnal is a online system used by Citation and Infometric Division (formely known Malaysia Citation Centre (MCC)) to collect and index all the Malaysian journals.

 

ISSN.ORG

https://portal.issn.org/resource/ISSN/2682-8383#