Monographs

Duxiu (读秀)
Catalog Title: Du Xiu
The Duxiu database includes 2.15million titles of full-text books in PDF files. It also contains numerous newspaper and journal articles, academic degree theses, and conference papers.
CADAL - China Academic Digital Associatative Library
 
Hathi Trust Digital Library
Catalog Title: Hathi
HathiTrust Digital Library is a digital preservation repository and highly functional access platform. It provides long-term preservation and access services for public domain and in copyright content from a variety of sources, including Google, the Internet Archive, Microsoft, and in-house partner institution initiatives.
Full-Text Republic Books Database 大成民国图书全文数据库