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Continue to ChatCengage says authors cannot opt out of Cengage Unlimited https://blog.taaonline.net/2018/04/cengage-says-authors-cannot-opt-out-of-cengage-unlimited/
Cengage says authors cannot opt out of Cengage Unlimited https://blog.taaonline.net/2018/04/cengage-says-authors-cannot-opt-out-of-cengage-unlimited/