Satyarsa, A.B.S. 2019. Potential Effects of Alkaloid vindolicine Substances in Tapak Dara Leafs (Catharanthus roseus (L.) G. Don) in Reducing Blood Glucose Levels. Journal of Medicine and Health. 2, 4 (Aug. 2019). DOI:https://doi.org/10.28932/jmh.v2i4.1057.