Simanjuntak, R. R. S. ., Simanjuntak, M. D. ., Hutagalung, C. ., Pandiangan, G. R. ., Turnip, I. W. ., Herman, H., Sihombing, S. D. ., & Munthe, B. . (2023). Introducing the Benefits of Learning TOEFL at Twelfth Grade of SMA Teladan Pematang Siantar: A Socialization . IKHLAS: Jurnal Pengabdian Dosen Dan Mahasiswa, 2(3), 15–21. https://doi.org/10.58707/ikhlas.v2i3.679