Purba B, Girsang SEE, Sihite R. The Implementation Multimedia As A Teaching Method To Improve The Speaking Ability Of Tenth Grade At Sma Negeri 5 Pematang Siantar. JBL [Internet]. 2023 Oct. 30 [cited 2024 May 13];5(2):159-65. Available from: https://jurnal.usi.ac.id/index.php/bilingual/article/view/1004