Verma, L. ., K. Narayan, S. . Arulraj, S. . Agrawal, and D. . Shankar. “Effect of Size of Planting Material on the Yield of Elephant Foot Yam Intercropped in a Coconut Garden”. Journal of Plantation Crops, vol. 40, no. 1, June 2012, pp. 65-67, https://www.updatepublishing.com/journal/index.php/JPC/article/view/7580.