Rahel, P. ., Sinaga, A. R. . and Siahaan, B. L. . (2022) “The Effect Of Using Instagram Application On Students’ Speaking Ability At Grade X In SMA Negeri 4 Pematangsiantar In 2022/2023 Academic Year”, Jurnal Pendidikan dan Konseling (JPDK), 4(6), pp. 154–161. doi: 10.31004/jpdk.v4i6.8129.