Goshu BS. Time-nonlocal modeling of khat addiction networks in Dire Dawa and Hararghe: Cultural persistence and economic feedback loops. Braz. J. of Sci. [Internet]. 2026 Jul. 27 [cited 2026 Oct. 22];6(2):90-110. Available from: https://periodicos.cerradopub.com.br/bjs/article/view/937