The Implementation Of ESA (Engage, Study, Active) Method To Improve The Students Speaking Ability At The Eight Grade Of SMP N 4 Pematangsiantar. jbl [Internet]. 2023 Apr. 25 [cited 2025 Jan. 10];5(1):18-24. Available from: http://jurnal.usi.ac.id/index.php/jbl/article/view/1024