AGUSTINUS MAHARDHIKA; YOGA ARIANSYAH TARIGAN; HENRY DWI PRIHARTANTO. Peramalan Permintaan Semen Ordinary Portland Cement dan Pengendalian Persediaan Gypsum di PT Solusi Bangun Indonesia. Prosiding Seminar Nasional Waluyo Jatmiko, [S. l.], v. 19, n. 1, p. 121–128, 2026. DOI: 10.33005/wj.v19i1.210. Disponível em: https://semnasti.upnjatim.ac.id/index.php/semnasti/article/view/210. Acesso em: 2 nov. 2026.