ISLAMIAH, N.; SUWARDI, W. Z. Analysis of the Impact of Income Inequality on People’s Ability to Pay and Willingness to Pay to Pay Health Fees or Purchase Cigarettes. Jurnal Online Manajemen ELPEI, [S. l.], v. 4, n. 1, p. 897–903, 2024. DOI: 10.58191/jomel.v4i1.250. Disponível em: https://jurnal.stim-lpi.ac.id/index.php/Jomel/article/view/250. Acesso em: 18 apr. 2026.