SARI, Atika Mayang; SUTARMAN, Sutarman; RAKHMAWATI, Fibri. Pemodelan Regresi Spline Truncated Birespon pada Inflasi dan PDRB Sumatera Utara. Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika, [S. l.], v. 7, n. 1, p. 355–376, 2024. DOI: 10.30605/proximal.v7i1.3652. Disponível em: https://e-journal.my.id/proximal/article/view/3652. Acesso em: 5 oct. 2025.