RAMADHAN, Gilang; RIAWAN, Ibnu Azmi; NAIM, Raihan Deprija. Analisis Tren Harga Aluminium, Tembaga, dan Nikel 2015–2025 serta Implikasinya terhadap Biaya Material Manufaktur. Jurnal Teknik Industri Terintegrasi (JUTIN), [S. l.], v. 9, n. 1, p. 972–980, 2026. DOI: 10.31004/jutin.v9i1.55298. Disponível em: https://journal.universitaspahlawan.ac.id/index.php/jutin/article/view/55298. Acesso em: 4 feb. 2026.