O, Hyeonbin, et al. “Effects of Adding Radicchio (Cichorium Intybus L.) Powder to Rice Cakes (Sulgidduk) on the Quality”. Progress in Nutrition, vol. 20, no. 1-S, Aug. 2018, pp. 246-54, https://doi.org/10.23751/pn.v20i1-S.6104.