1, Zhang Qiao Scientific Research
There are 65438+300 million Chinese and foreign documents, and a large number of Chinese and foreign documents are downloaded for free through small programs.
2. National Documentation Center for Philosophy and Social Sciences
The center has collected more than 7,000 Chinese and foreign academic journals and ancient books, and the online data has exceeded10 million.
3. Document Information Center of China Academy of Sciences
Anyone marked with "Get Full Text" can jump to the original webpage to download.
4. Online high-quality papers of China's scientific papers.
Papers in the field of natural science.
5. Digital resource library of Chinese books of National Library of China.
Provide170,000 books on various subjects, which can be read online.
6. Hans Publishing House China Academic Journal
Provide 125 international open source Chinese periodicals for free download and reading.
7.NSTL Open Academic Resources System Network
The platform contains more than 7,500 periodicals and nearly 5 million periodicals, covering a variety of disciplines.
8. University of Michigan Thesis Library
More than 20,000 full-text journals, technical reports, summaries and other documents can be opened on the pro-test website.
9. Pliers
At present, the platform * * * contains more than 46,000 periodicals, including more than 29,000 open access periodicals.
10, national library paper search network
You can search many Chinese and foreign periodical papers, leave a mailbox and send them to your mailbox for free.
Through study, everyone can become an elite.