Amazon.com: Foundations of Module and Ring Theory: A Handbook for Study and Research (Algebra, Logic and Applications): 9782881248054: Wisbauer, Robert: Books
Linear Algebra over Division Ring: System of Linear Equations: Kleyn, Aleks: 9781477631812: Amazon.com: Books
RNT1.1. Definition of Ring - YouTube
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abstract algebra - On Group Near-Ring - Mathematics Stack Exchange
A First Course in Abstract Algebra: Group Theory,Ring Theory | Udemy
Modern algebra | Algebraic Structures, Rings & Group Theory | Britannica
Visual Group Theory, Lecture 7.1: Basic ring theory - YouTube