“Climate Variability and the Resilience of Smallholder Tea Production in the East Usambara Mountain Farming System, Tanzania”, IJSAS, vol. 2, no. 8, pp. 805–820, Sep. 2024, Accessed: Oct. 13, 2025. [Online]. Available: https://penerbitjurnalinternasional.com/index.php/ijsas/article/view/638