TESFA BINALFEW. The Expansion of Production, Marketing and Consumption of Chat in Ethiopia. Global Journal of Science Frontier Research, [S. l.], v. 17, n. C2, p. 17–27, 2017. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/1983. Acesso em: 4 may. 2024.