Silalahi, Mardin, Natanael Saragih, and Inggit Arimbi. 2023. “Investigating The English Speaking Skill Of The Eleventh Grade Students Of Smk Swasta 2 Tamansiswa Pematang Siantar By Using Tedxtalks Youtube Channel”. Bilingual : Jurnal Pendidikan Bahasa Inggris 5 (2):138 -. https://doi.org/10.36985/jbl.v5i2.993.