THE EFFECT OF ROLE PLAY STRATEGY ON STUDENTS’ SPEAKING ABILITY AT EIGHTH GRADE OF SMP NEGERI 9 PEMATANGSIANTAR. jbl [Internet]. 25 April 2022 [dikutip 1 November 2025];4(1):13 – 17. Tersedia pada: http://jurnal.usi.ac.id/index.php/jbl/article/view/1003