Girijadevi, L., R. Gladis, and Biju Joseph. “Benefit Cost Ratio Analysis of Coconut Based Cropping Systems”. Journal of Plantation Crops 41, no. 1 (May 12, 2013): 101–104. Accessed September 23, 2025. https://www.updatepublishing.com/journal/index.php/JPC/article/view/5911.