@unpublished{repository17198,
           title = {Learning trajectory based on
fractional sub-constructs Using
fractions as quotients to
introduce fractions},
            note = {Unpublished},
       publisher = {mathematics teaching research journal},
             url = {http://repository.uhamka.ac.id/id/eprint/17198/},
          author = {Ishaq, Nuriadin}
}