AcademicKeys
CABI
CINAHL
Directory of Open Access Journals (DOAJ)
EBSCO (Academic Search Complete, academic search premier, academic search R&D, CINAHL Plus with Full Text, CINAHL Plus)
Scientific Information Database (SID)
Scopus
Ulrich
WorldCat
Google scholar
Index Medicus for the WHO Eastern Mediterranean Region (IMEMR)
Iran Journals
Islamic World Science Citation Center (ISC)
LocatorPlus
Magiran