Syamsurizal, S., P. D. Pratiwi, R. Novia, S. D. Sitanggang, A. Rani, and M. O. Damayani. “The Antioxidant Potential of Cyrtostachys Renda Blume Fruit and Root Isolate With DPPH Method”. Journal of Pharmaceutical and Sciences, vol. 6, no. 5, Dec. 2023, pp. 204-1, doi:10.36490/journal-jps.com.v6i5-si.407.