Thacker, J.R.M., L.V. Laine, and R.D. McLean. 2000. “The Effects of a Fungal Biocontrol Agent and a Chemical Adjuvant on the Efficacy of Cuprous Oxide Sprays for Controlling Witches’ Broom Disease in Cocoa”. Journal of Agricultural and Marine Sciences [JAMS] 5 (1):29-33. https://journals.squ.edu.om/index.php/jams/article/view/565.