Monday O. Ale and  Adebukola A. Akintade and  Olasunbo O. Orungbemi,  Effects of Fermentation Techniques on the Quality of Cocoa Beans.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2018, vol. 140(8). 251 - 254
    [viewed 21 November 2019]. Available from: https://publications.waset.org/pdf/10009417.