I. M. O. Adnyana, A. R. Sudewi, D. P. Samatra, and D. Suprapta, “Neuroprotective Effects of Purple Sweet Potato Balinese Cultivar in Wistar Rats With Ischemic Stroke”, Open Access Maced J Med Sci, vol. 6, no. 11, pp. 1959–1964, Nov. 2018.