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Here is a link to almost any textbook's free PDF version.
UPDATED SITES AND SOURCES FOR FREE BOOKS : r/textbook
What free online textbook sites do you recommend? : r/byu - Reddit
39 places to get free textbooks and other books (including
Where’s can I download free textbooks that are reliable and
Here is a link for a free PDF of nearly any textbook
Here is a link for free PDFs of nearly any textbook - Reddit
Where to find FREE Textbooks and Solution Manuals : …
Where do you people find ebooks there days? : r/Piracy - Reddit
The Most Comprehensive set of Links to Free EBook Sites I