@incollection{repository2063,
       publisher = {UHAMKA Press},
       booktitle = {Aljabar Abstrak},
           title = {Buku Aljabar Abstrak Bab 2},
            note = {In Press},
          author = {Purwanto, Sigid Edy},
             url = {http://repository.uhamka.ac.id/id/eprint/2063/}
}