Silalahi M, Saragih N, Inggit Arimbi. Investigating The English Speaking Skill Of The Eleventh Grade Students Of Smk Swasta 2 Tamansiswa Pematang Siantar By Using Tedxtalks Youtube channel . JBL [Internet]. 2023 Oct. 30 [cited 2024 May 9];5(2):138 -. Available from: https://jurnal.usi.ac.id/index.php/bilingual/article/view/993