Scopus® (54,216)
MEDLINE (20,972)
Science Citation Index Expanded (7,458)
Complementary Index (2,699)
Academic Search Complete (2,182)
Supplemental Index (1,453)
arXiv (1,393)
Directory of Open Access Journals (1,212)
ScienceDirect (1,206)
IEEE Xplore Digital Library (1,183)
SwePub (1,116)
Springer Nature Journals (1,023)
eScholarship (860)
CINAHL Plus with Full Text (469)
Gale Academic OneFile (452)
Journals@OVID (426)
Gale General OneFile (223)
Social Sciences Citation Index (179)
MathSciNet via EBSCOhost (138)
DBPIA (133)
RePEc (87)
Business Source Complete (83)
JSTOR Journals (72)
NASA Technical Reports (60)
Digital Access to Scholarship at Harvard (DASH) (52)
USPTO Patent Applications (34)
Education Source (34)
Europeana (33)
Korean Studies Information Service System (30)
Airiti Library eBooks & Journals - 華藝線上圖書館 (30)
USPTO Patent Grants (26)
China Online Journals (Wanfang) (24)
ACM Full-Text Collection (20)
J-STAGE (18)
De Gruyter Online (13)
Korea Citation Index (12)
Emerald Insight (11)
BioOne Complete (6)
Academic Conferences in China (Wanfang) (5)
ASTM Compass (5)
SciELO (4)
ERIC (4)
eArticle (4)
Arts & Humanities Citation Index (3)
APA PsycArticles (3)
GeoScienceWorld (3)
SciTech Connect (3)
스콜라(Scholar) (3)
Communication & Mass Media Complete (2)
KERIS Theses & Dissertations (2)
E-LIS (Eprints in Library & Information Science) (2)
Library, Information Science & Technology Abstracts (2)
British Library EThOS (1)
F1000Research (1)
HeinOnline (1)
Regional Business News (1)
SpringerMaterials (1)
Oxford Medicine Online (1)