JEAN-ROGER ESSOMBE-EDIMO. 6 - Contribution à l’analyse essentielle de la tontine africaine: by Jean-Roger Essombe-Edimo. Africa Development, [S. l.], v. 18, n. 2, 1993. DOI: 10.57054/ad.v18i2.2642. Disponível em: https://journals.codesria.org/index.php/ad/article/view/2642. Acesso em: 27 jul. 2025.