下载美国大学课本的12个资源网站

• http://www.textbooknova.com

  
  

• http://www.reddit.com/r/eebooks+mathbooks+csbooks+physicsbooks+econbooks/new/?sort=new

  
  

• http://bookboon.com/en/textbooks-ebooks

  
  

• http://textbookrevolution.org/index.php/Main_Page

  
  

• http://people.math.gatech.edu/~cain/textbooks/onlinebooks.html

  
  

• http://ebookee.org 

  
  

• http://www.freebookspot.es

  
  

• http://www.free-ebooks.net

  
  

• http://www.getfreeebooks.com 

  
  

• http://en.bookfi.org 

  
  

• http://oerconsortium.org/discipline-specific 

  
  

• http://www.gutenberg.org