Hutton, D. G., Abdul H. Wahab, Joseph Dehaney, and Alejandro Ayala. 1985. “Critical Levels of Dry Rotting of Yellow Yam (Dioscorea Cayenensis) Planting Material and Control of Pratylenchus Coffeae”. The Journal of Agriculture of the University of Puerto Rico 69 (3):231-37. https://doi.org/10.46429/jaupr.v69i3.7350.