body: A few years ago, I made a science study guide for a specific chapter of a textbook for some people I was tutoring. I would like to sell it now, but unfortunately I used a ton of separate sources from the internet and from separate textbooks. I also used a few diagrams from the internet. If I specify that I only wish to be paid for the time that it took to set up the study guide, can I sell it as long as I don't claim to have made the material? Or can I claim the purchase as a donation to keep my blog going? 
  
  
  
title: Can I sell my study guide?