Nsor-Atindana, John, et al. “Quantification of Total Polyphenolic Content and Antimicrobial Activity of Cocoa (Theobroma Cacao L.) Bean Shells”. Pakistan Journal of Nutrition, vol. 11, no. 7, June 2012, pp. 672–677, https://doi.org/10.3923/pjn.2012.672.677.