4 ms·
The American Institute for Mathematics has an Open Textbook Initiative at https://aimath.org/textbooks/approved-textbooks https://aimath.org/textbooks/approved-
by coley_moke 3y ago
The American Institute for Mathematics has an Open Textbook Initiative at https://aimath.org/textbooks/approved-textbooks https://aimath.org/textbooks/approved-textbooks.
MathPages.com could be good for enrichment.