Internet is Beautiful @lemm.ee sag @lemm.ee 5mo ago Free and Open-Source Textbooks (Mathematics) danaernst.com Free and Open-Source Textbooks 2 crossposts Mathematik @feddit.org marv99 @feddit.org 10mo ago Free and Open-Source [Mathematics] Textbooks danaernst.com /resources/free-and-open-source-textbooks/ InternetIsBeautiful @feddit.de marv99 @feddit.de 2y ago Free and Open-Source Textbooks (Mathematics) danaernst.com /resources/free-and-open-source-textbooks/