Scopus® (99,014)
MEDLINE (42,095)
Science Citation Index Expanded (12,332)
OAIster (6,065)
Complementary Index (5,245)
Academic Search Complete (4,157)
Supplemental Index (3,192)
IEEE Xplore Digital Library (2,844)
Directory of Open Access Journals (2,045)
ScienceDirect (1,775)
arXiv (1,678)
Springer Nature Journals (1,471)
CINAHL Plus with Full Text (1,051)
SwePub (949)
Gale Academic OneFile (915)
Journals@OVID (846)
eScholarship (704)
Social Sciences Citation Index (383)
Gale General OneFile (306)
MathSciNet via EBSCOhost (288)
Business Source Complete (201)
JSTOR Journals (164)
RePEc (157)
USPTO Patent Grants (113)
USPTO Patent Applications (86)
Education Source (75)
NASA Technical Reports (66)
Airiti Library eBooks & Journals - 華藝線上圖書館 (64)
J-STAGE (57)
China Online Journals (Wanfang) (46)
Digital Access to Scholarship at Harvard (DASH) (40)
Korea Citation Index (32)
ACM Full-Text Collection (29)
DBPIA (26)
De Gruyter Online (20)
SciTech Connect (20)
ERIC (18)
Communication & Mass Media Complete (16)
BioOne Complete (14)
Europeana (11)
Library, Information Science & Technology Abstracts (10)
ProjectMUSE (9)
GeoScienceWorld (8)
Academic Conferences in China (Wanfang) (6)
Arts & Humanities Citation Index (6)
Emerald Insight (5)
SciELO (4)
Korean Studies Information Service System (4)
MLA International Bibliography (4)
KERIS Theses & Dissertations (4)
GOBI E-books (4)
스콜라(Scholar) (3)
Oxford Scholarship Online (3)
British Library EThOS (3)
Aerospace Research Central (3)
HeinOnline (3)
Oxford Medicine Online (3)
APA PsycArticles (2)
ASTM Compass (1)
ASM Medical Materials Database (1)
eArticle (1)
F1000Research (1)
Choice Reviews (1)
JoVE Journal (1)
Cochrane Database of Systematic Reviews (1)
Wiley Digital Archives (1)