The Beles or Cactus Pear (Opuntia ficus-indica) in Tigray, Ethiopia. Journal of the Professional Association for Cactus Development, [S. l.], v. 2, p. 130–141, 1997. DOI: 10.56890/jpacd.v2i.177. Disponível em: https://www.jpacd.org/jpacd/article/view/177. Acesso em: 16 oct. 2025.