NURUL; DESSY FITRIANI. PENGARUH EFEKTIVITAS TEKNIK SELF-MANAGEMENT TERHADAP KEDISIPLINAN SISWA KELAS XII TAMANSISWA BINJAI. Serunai : Jurnal Ilmiah Ilmu Pendidikan, [S. l.], v. 9, n. 2, 2023. Disponível em: https://www.ejournal.stkipbudidaya.ac.id/index.php/serunai/article/view/1103. Acesso em: 21 aug. 2026.