★ Google Scholar

★ Hein Online Database, W.S.HEIN, USA

★ Chinese Database of CEPS,

★ American Federal Computer Library center (OCLC), USA

★ Chinese Scientific Journals Database, VIP Corporation, Chongqing, P. R. China

★ Ulrich’s Periodicals Director

★ Summon Serials Solutions

★ CNKI

★ J-Gate

★ AcademicKeys
★ CiteFactor (USA)
★ getCITED
★ Scientific Indexing Services
★ INNO SPACE
★ SJournals