Krishnakumar, V., S. Kalavathi, R. Jacob Thomas, and G. V. Thomas. “Diversification of Coconut Based Farming System through Community Based Organizations for Income Generation and Sustaining Productivity”. Journal of Plantation Crops, vol. 41, no. 3, Sept. 2013, pp. 271-6, https://updatepublishing.com/journal/index.php/JPC/article/view/5820.