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+Before disabling any content in relation to this takedown notice, GitHub
+- contacted the owners of some or all of the affected repositories to give them an opportunity to [make changes](https://docs.github.com/en/github/site-policy/dmca-takedown-policy#a-how-does-this-actually-work).
+- provided information on how to [submit a DMCA Counter Notice](https://docs.github.com/en/articles/guide-to-submitting-a-dmca-counter-notice).
+
+To learn about when and why GitHub may process some notices this way, please visit our [README](https://github.com/github/dmca/blob/master/README.md#anatomy-of-a-takedown-notice).
+
+---
+
+To whom it may concern,
+ 
+I hereby state under penalty of perjury that I am authorized to act on behalf of Cengage Learning, Inc. (hereinafter “Cengage”), with its registered office located at [private]. Cengage is a world-renowned publisher, dedicated to publishing high quality educational materials around the world. Cengage is the exclusive copyright owner of the textbooks, test banks, and/or instructor solution manuals it has published as well as the copyrighted material displayed on the official website www.cengage.com  
+
+Consequently, any exploitation (including but not limited to the use) of Cengage’s IPRs must be expressly authorized by my client.  
+Recently it has come to my attention that the website on domain name github.com, contains unauthorized use of Cengage’s copyrights.   
+
+I have a good faith to belief that such use of Cengage’s copyrights is not authorized by Cengage, by any agent of Cengage, or by law. That constitutes copyright infringement.  
+The aforementioned infringements take place on the Infringing Website that is conducted under the below URL(s).  
+https://github.com/bookyue/my_books/blob/master/mathematics/calculus/stewart_calculus/Instructor%E2%80%99s%20Solutions%20Manuals%20for%20Calculus%20Early%20Transcendentals%209th%20Edition%20by%20James%20Stewart%2C%20Daniel%20K.%20Clegg%2C%20Saleem%20Watson.pdf  
+https://github.com/bookyue/my_books/blob/master/mathematics/calculus/stewart_calculus/Calculus%20Early%20Transcendentals%209th%20Edition%20Metric%20Edition%20by%20James%20Stewart%2C%20Daniel%20Clegg%2C%20Saleem%20Watson.pdf
+
+You, as a owner of this website, have been made aware of the infringing activity on the website operated under the domain name github.com through this notification. On behalf of Cengage, I hereby request you to remove the website expeditiously and permanently from your servers, or disable access to it in a swift and permanent manner within 5 days after receiving this letter.  
+
+The information contained in this letter is accurate and shall not affect in any way, the rights, remedies and/or defenses my client has, had, or may have for acting in this matter.
+ 
+Sincerely,  
+On behalf of Cengage,  
+Corsearch B.V.  
+[private]
+ 
+Our contact information:   
+Address : [private]  
+| Phone: [private]  
+| email : [private]