TY - UNPB PB - uhamka ID - repository40242 UR - http://repository.uhamka.ac.id/id/eprint/40242/ N1 - Unpublished TI - ARTIKEL PENELITIAN_Effectiveness of Multiple Representation-Based Mechanics Lectures Using YouTube Video Content on Concept Mastery A1 - Imas Ratna Ermawati, IRE AV - public ER -