Price Smoothing Behavior of Cigarette Firms in Indonesia. Signifikan: Jurnal Ilmu Ekonomi, [S. l.], v. 13, n. 2, p. 365–382, 2024. DOI: 10.15408/sjie.v13i2.40957. Disponível em: https://journal.uinjkt.ac.id/signifikan/article/view/40957. Acesso em: 15 jan. 2026.