L. Cempaka, L. Aliwarga, S. Purwo, and M. T. A. P. Kresnowati, “Dynamics of Cocoa Bean Pulp Degradation during Cocoa Bean Fermentation: Effects of Yeast Starter Culture Addition”, J. Math. Fund. Sci., vol. 46, no. 1, pp. 14-25, Apr. 2014.