“Glasshouse Method for Screening Seedlings of Cocoa (Theobroma Cacao L.) for Resistance to Black Pod Caused by Phytophthora palmivora(Butl.) Butl”. Tropical Agriculture, vol. 50, no. 2, Apr. 1973, https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/3324.