Public Library of Ayatollah Mar’ashi Najafi
Turkish Foundation of History (Turk tarih kurumi)
Institute for Research in Contemporary History of Iran
Academy of Persian Language and Literature
Academy of Medical Sciences
The Library of Congress LC WWW/Z39.50 Gateway
Institute for Revival of
Ayatollah Khoei’s Works
International Center for Information Dissemination
Institute of Imam Sadiq
Site for Introduction of World’s Credible Journals in Humanities and other Disciplines
Research Center of the Islamic Consultative Parliament
Ministry of Science, Research and Technology 
Research Institute of Humanities and Cultural Studies
Department of Training and Research of the Ministry of Foreign Affairs
Dar-ul-Hadith Cultural Institute
Institute of the Islamic Encyclopaedia of Ahl ul Bayt (PBUT)
Library of the Holy Shrine of Imam Reza
National Center for Scientific Research (CNRS) of France
Britannica Encyclopedia
Center for Information and Scientific Documents of Iran
World Forum for Proximity Between the Islamic Schools of Thought
Islamic Culture and Relations Organization
Berlin Central Library
Research Center for Islamic History
Iranica Encyclopaedia
The Internet Encyclopedia of Philosophy
Stanford Encyclopedia of Philosophy
Encyclopedia of Orient
Jewish Encyclopedia
Meta-Encyclopedia of Philosophy
The Center for the Great Islamic Encyclopedia
The Institute of Ismaili Studies
Türkiye Diyanet Vakfý