@unpublished{repository23032,
         journal = {JPPIPA},
           title = {Analysis  of  Student's  Answer  Error on  Understanding of Energy  Concept in  Conceptual  Change  Text  (CCT)-Based Learning},
            note = {Unpublished},
             url = {http://repository.uhamka.ac.id/id/eprint/23032/},
          author = {Wati Sukmawati, Wati}
}