DANNA, Abba; ABBO, Bakari; PARE, Youssouf. The effects of water level shrinkage in the Lake Chad Basin on costs of production of local residents. International Journal of Applied Mathematical Research, [S. l.], v. 7, n. 1, p. 7–9, 2017. DOI: 10.14419/ijamr.v7i1.7315. Disponível em: https://www.sciencepubco.com/index.php/ijamr/article/view/7315.. Acesso em: 29 apr. 2024.