Okoh, C.I., and M.A. Enaboifo. “Effect of Pig Dung on the Vegetative Growth of Xanthosoma Sagittifolium (Cocoyam)”. ADAN JOURNAL OF AGRICULTURE, vol. 1, no. 1, July 2020, pp. 82-86, doi:10.36108/adanja/0202.10.0190.