HASNI, Erna. PENERAPAN LAYANAN MEDIASI UNTUK MENGURANGI PERKELAHIAN ANTAR SISWA SMP NEGERI 5 PERCUT SEI TUAN. JS (JURNAL SEKOLAH), [S. l.], v. 3, n. 3, p. 300–308, 2019. DOI: 10.24114/js.v3i3.17868. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/js/article/view/17868. Acesso em: 4 jul. 2025.