Mowa EM, Maas E. Influence of resting period on fruits and secondary tubers of Harpagophytum procumbens in Namibia. ISTJN [Internet]. 2017 Nov. 28 [cited 2024 Nov. 24];:073-90. Available from: https://journals.unam.edu.na/index.php/ISTJN/article/view/1200