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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 (Dec. 2023), 28–32. DOI:https://doi.org/10.58707/ikhlas.v2i3.680.