Balasimha, D., and S. Naresh Kumar. “Net Primary Productivity, Carbon Sequestration and Carbon Stocks in Areca-Cocoa Mixed Crop System”. Journal of Plantation Crops 41, no. 1 (May 12, 2013): 8–13. Accessed September 23, 2025. https://www.updatepublishing.com/journal/index.php/JPC/article/view/5895.