Ma, Jingjing
Lecture notes on algebraic structure of lattice-ordered rings
World Scientific, 2014
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Cohn, P.M.
Free rings and their relations
Academic Press, 1985
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Szasz, F.A.
Radicals of rings
John Wiley & Sons, 1981
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Anderson, Frank W.
Rings and categories of modules
Springer-Verlag, 1992
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Bhattacharya, P.B.
First course in rings, fields and vector spaces
Wiley Eastren, 1977
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