@misc{repository1143,
            year = {2017},
       publisher = {UHAMKA},
           title = {MODUL: Kimia Lingkungan Berbasis Masalah},
           month = {July},
             url = {http://repository.uhamka.ac.id/id/eprint/1143/},
          author = {Yusuf, Yusnidar}
}