Astrinia Ristama Tampubolon, et al. “The Effect Of Using Tiktok On Students’ Vocabulary Mastery In Seventh Grade At SMP Negeri 9 Pematang Siantar ”. Jurnal Ilmu Pendidikan Dan Sosial, vol. 2, no. 3, Oct. 2023, pp. 390-02, doi:10.58540/jipsi.v2i3.446.