Aruan, Dewi Fortuna, Selviana Napitupulu, Anita Sitanggang, and Janantri Hotmauli Nainggolan. 2022. “The Effect of Youtube on students’ Vocabulary Achievement At the Eleventh Grade of Sma Swasta Teladan Pematangsiantar”. Jurnal Pendidikan Dan Konseling (JPDK) 4 (6):2241-48. https://doi.org/10.31004/jpdk.v4i6.8533.