FITRIA, A. The Relationship of age, attitude, knowladge, cost to cataract surgery. Jurnal Berkala Epidemiologi, [S. l.], v. 4, n. 2, p. 176–187, 2017. DOI: 10.20473/jbe.V4I22016.176-187. Disponível em: https://e-journal.unair.ac.id/JBE/article/view/2144. Acesso em: 3 aug. 2024.