PRAMESTYA, ADHE ANNISA (2024) THE EFFECTIVENESS OF USING RAP SONG AS A MEDIUM TO IMPROVE MASTERY OF IRREGULAR PAST SIMPLE VERBS: A CASE STUDY AT SMPN 47 MAKASSAR = THE EFFECTIVENESS OF USING RAP SONG AS A MEDIUM TO IMPROVE MASTERY OF IRREGULAR PAST SIMPLE VERBS: A CASE STUDY AT SMPN 47 MAKASSAR. Skripsi thesis, Universitas Hasanuddin.