★IC,

★IBI Factor,

★ Chinese Database of CEPS, American Federal Computer Library center (OCLC), USA 

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

★ CSA Technology Research Database  

★ Ulrich's Periodicals Directory 

★ Summon Serials Solutions 

★ Universe Digital Library S/B  

★ Google scholar

★ RoMEO
★ Electronic Journals Library
★ AcademicKeys
★ CiteFactor (USA)
★ Newjour
★ Scientific Indexing Services
★ INNO SPACE
★ SJournals