Kian Chee, S. Y., A. H. MD Yusof, and H. H. Chin. “Cocoa Fresh Beans Aqueous Extract As Free Radical Quencher and Ferric Reducer.”. Pelita Perkebunan (a Coffee and Cocoa Research Journal), Vol. 38, no. 2, Aug. 2022, pp. 138-44, doi:10.22302/iccri.jur.pelitaperkebunan.v38i2.502.