@unpublished{repository40242,
            note = {Unpublished},
           title = {ARTIKEL PENELITIAN\_Effectiveness of Multiple Representation-Based Mechanics Lectures Using YouTube Video Content on Concept Mastery},
       publisher = {uhamka},
             url = {http://repository.uhamka.ac.id/id/eprint/40242/},
          author = {Imas Ratna Ermawati, IRE}
}