References

A SIMPLE PROOF THAT MINIMAL NORMAL SUBGROUPS OF FINITE GROUPS ARE DIRECT PRODUCTS OF ISOMORPHIC SIMPLE GROUPS


[1] J. D. Dixon and B. Mortimer, Permutation Groups, Springer Verlag, 1996.

[2] M. Hall, Jr., The Theory of Groups, The MacMillan Company, 1959.

[3] J. J. Rotman, An Introduction to the Theory of Groups, Springer Verlag, 4th Edition, 1995.