MURJANI, Ahmadi; WIRATAMA, Budhi Fatanza. Simpson index and food security: The case study of Kalimantan. Jurnal Ekonomi Indonesia, [S. l.], v. 14, n. 2, p. 145–161, 2025. DOI: 10.52813/jei.v14i2.559. Disponível em: https://jurnal.isei.or.id/index.php/isei/article/view/559. Acesso em: 28 may. 2026.