DEWI, Ratna Sri; JAYA, Indra; HUSEIN, Ismail. Peramalan Penerimaan Pajak Kendaraan Bermotor Menggunakan Metode Triple Exponential Smoothing di Sumatera Utara. Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika, [S. l.], v. 7, n. 2, p. 572–583, 2024. DOI: 10.30605/proximal.v7i2.3724. Disponível em: https://www.e-journal.my.id/proximal/article/view/3724. Acesso em: 24 dec. 2025.