Anderson, Frank W.
Rings and categories of modules
Springer-Verlag, 1992
 Buku Teks SO
Roman, Steven
Fundamentals of group theory: an advanced approach
Springer Science, 2012
 eBooks
Machi, Antonio
Groups : an introduction to ideas and methods of the theory of groups
Springer, 2012
 eBooks
Levy, Leon S.
Discrete structures of computer science / Leon S. Levy
John Wiley & Sons, 1980
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Lane, Saunders Mac
Categories for the working mathematician
Springer, 1994
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