ABDULLAH, Al-Haj; MOHAMMED, Zahra. Hausa and Their Economic Impact in the Lake Chad Basin. Ibn Khaldoun Journal for Studies and Researches, فلسطين, v. 5, n. 1, 2025. DOI: 10.56989/benkj.v5i1.1326. Disponível em: https://www.benkjournal.com/index.php/benkj/article/view/1326. Acesso em: 30 apr. 2026.