https : //www.curriki.org/oer/Curriki-Algebra--Content-of-Contents
https://math.stackexchange.com/questions/217285/applications-of-abstract-algebra-to-elementary-mathematics/217706#217706
https://bookauthority.org/books/best-abstract-algebra-books
http://abstract.pugetsound.edu/sage-aata.html
NOC:Introduction to Abstract Group Theory |
NOC:Groups : Motion, symmetry and puzzles |
NOC:Graph Theory |