GOSHU, Belay Sitotaw. Time-nonlocal modeling of khat addiction networks in Dire Dawa and Hararghe: Cultural persistence and economic feedback loops. Brazilian Journal of Science, [S. l.], v. 6, n. 2, p. 90–110, 2026. DOI: 10.14295/bjs.v6i2.937. Disponível em: https://periodicos.cerradopub.com.br/bjs/article/view/937. Acesso em: 23 oct. 2026.