Hamming, Richard W.
Coding and information theory
Prentice-Hall, 1980
 Buku Teks SO
Cotton, F. Albert
Chemical applications of group theory
John Wiley & Sons, 1971
 Buku Teks SO
Cotton, F. Albert
Chemical applications of group theory
John Wiley & Sons, 1990
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Brown, Kenneth S.
Cohomology of groups
Springer-Verlag, 1982
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Savage, John E.
The complexity of computing
John Wiley & Sons, 1976
 Buku Teks SO