LAYANAN KONSELING KELOMPOK BERBASIS BEHAVIOR CONTRACT DALAM MENINGKATKAN KEDISIPLINAN SISWA DI MTS MUHAMMADIYAH TONGKO. JPPD: Jurnal Penelitian Pendidikan Dasar, [S. l.], v. 3, n. 02, p. 218–225, 2026. Disponível em: http://journal.lumiverapublishing.org/index.php/jppd/article/view/452. Acesso em: 8 sep. 2026.