USING PICTURES TO IMPROVE STUDENTS ENGLISH VOCABULARY AT SEVENTH GRADE OF SMP NEGERI 1 SIAU TIMUR SELATAN. JoTELL [Internet]. 2022 Mar. 29 [cited 2025 Dec. 4];1(3):417 430. Available from: https://ejurnal.unima.ac.id/index.php/jotell/article/view/3793