1. Adegbola, M. O. K. (1965). The relative efficiency of Planococcoides (=Pseudococcus) njalensis (Laing) and Ferrisiana virgata (Ck11) in the transmission of CSSV. Ann. Rep. Cocoa Res. Inst. Nigeria 1963–64, pp. 43–44.
2. The efficiency of mealybug handlers as a factor in laboratory transmission of cocoa swollen shoot virus (CSSV);Adegbola;Niger. Ent. Mag.,1971
3. Anon. (1950). Virus-host relationships. A newly-discovered locus of infection in the plant. Ann. Rep. W. Afr. Cacao Res. Inst. 1948–49, pp. 13–14.
4. Anon. (1958). Quart. Rep. W. Afr. Cocoa Res. Inst. 52: 5–6.
5. Anon. (1963). Half-Yearly Rep. Cocoa Res. Inst. Ghana 2: 13.