Astrinia Ristama Tampubolon, Basar Lolo Siahaan and Anita Sitanggang 2023. The Effect Of Using Tiktok On Students’ Vocabulary Mastery In Seventh Grade At SMP Negeri 9 Pematang Siantar . Jurnal Ilmu Pendidikan dan Sosial. 2, 3 (Oct. 2023), 390–402. DOI:https://doi.org/10.58540/jipsi.v2i3.446.