“Yield Performance of the Cocoa Clones of Sca 6 and DRC 15 Resistant to Vascular-Streak Dieback”. Pelita Perkebunan (a Coffee and Cocoa Research Journal), vol. 26, no. 3, Aug. 2009, https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v26i3.136.