AYU RUKIA SIBURIAN; VIDYA DWI AMALIA ZATI. Analisis Penyimpangan Perilaku Sopan Santun pada Remaja di Desa Tomuan Kecamatan Siantar Timur. EduInovasi:  Journal of Basic Educational Studies, [S. l.], v. 5, n. 2, p. 1591 –, 2025. DOI: 10.47467/edu.v5i2.9300. Disponível em: http://journal-laaroiba.com/ojs/index.php/edu/article/view/9300. Acesso em: 1 may. 2026.