Purba, R. and Aritonang, C. N. (2022) “The Effect of Role Playing Strategy on Students’ Speaking Ability At Eighth Grade of SMP Negeri 9 Pematangsiantar”, Bilingual : Jurnal Pendidikan Bahasa Inggris, 4(1), pp. 13 –. doi: 10.36985/jbl.v4i1.376.