SIMANJUNTAK, R. R. S. .; SIMANJUNTAK, M. D. .; HUTAGALUNG, C. .; PANDIANGAN, G. R. .; TURNIP, I. W. .; HERMAN, H.; SIHOMBING, S. D. .; MUNTHE, B. . Introducing the Benefits of Learning TOEFL at Twelfth Grade of SMA Teladan Pematang Siantar: A Socialization . IKHLAS: Jurnal Pengabdian Dosen dan Mahasiswa, [S. l.], v. 2, n. 3, p. 15–21, 2023. DOI: 10.58707/ikhlas.v2i3.679. Disponível em: https://www.ejournal.indrainstitute.id/index.php/ikhlas/article/view/679. Acesso em: 5 jul. 2025.