Tamba, D. W. ., Pardede, R. M. P. ., Lubis, H. T. ., Gea, E. C. Y. ., Siahaan, R. C. ., Herman, H., Purba, A. and Tannuary, A. (2023) “Socialization on Improving English Language Skills through TOEFL for Grade 12 Students of SMK Swasta HKBP Pematang Siantar ”, IKHLAS: Jurnal Pengabdian Dosen dan Mahasiswa, 2(3), pp. 28–32. doi: 10.58707/ikhlas.v2i3.680.