“Effects of Co-Infection by Fusarium Oxysporum and Sunn-Hemp Mosaic Virus on the Growth of Cowpea (Vigna Unguiculata (L.) Walp.)”. Tropical Agriculture, vol. 60, no. 4, Oct. 1983, https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/2435.