MOWA, E. M.; MAAS, E. Influence of resting period on fruits and secondary tubers of Harpagophytum procumbens in Namibia. International Science and Technology Journal of Namibia, [S. l.], p. 073–090, 2017. Disponível em: https://journals.unam.edu.na/index.php/ISTJN/article/view/1200. Acesso em: 14 may. 2024.