DEGANO, C.; ALONSO, M.; OCHOA, J.; CATAN, A. Seed Characterization and Scanning Electron Microscope (SEM) Morphology of the Testa of Three Groups of Argentine Opuntia ficus-indica (Cactaceae). Journal of the Professional Association for Cactus Development, [S. l.], v. 2, p. 103–113, 1997. DOI: 10.56890/jpacd.v2i.175. Disponível em: https://www.jpacd.org/jpacd/article/view/175. Acesso em: 16 oct. 2025.